81539640

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1$

素因数の和:187

約数の個数: 384

約数和(自身を含む): 345945600

約数和(自身を除く): 264405960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 24, 26, 28, 30, 35, 36, 38, 39, 40, 42, 45, 52, 56, 57, 60, 63, 65, 70, 72, 76, 78, 84, 90, 91, 95, 104, 105, 114, 117, 120, 126, 130, 131, 133, 140, 152, 156, 168, 171, 180, 182, 190, 195, 210, 228, 234, 247, 252, 260, 262, 266, 273, 280, 285, 312, 315, 342, 360, 364, 380, 390, 393, 399, 420, 455, 456, 468, 494, 504, 520, 524, 532, 546, 570, 585, 630, 655, 665, 684, 728, 741, 760, 780, 786, 798, 819, 840, 855, 910, 917, 936, 988, 1048, 1064, 1092, 1140, 1170, 1179, 1197, 1235, 1260, 1310, 1330, 1365, 1368, 1482, 1560, 1572, 1596, 1638, 1703, 1710, 1729, 1820, 1834, 1965, 1976, 1995, 2184, 2223, 2280, 2340, 2358, 2394, 2470, 2489, 2520, 2620, 2660, 2730, 2751, 2964, 3144, 3192, 3276, 3406, 3420, 3458, 3640, 3668, 3705, 3930, 3990, 4095, 4446, 4585, 4680, 4716, 4788, 4940, 4978, 5109, 5187, 5240, 5320, 5460, 5502, 5895, 5928, 5985, 6552, 6812, 6840, 6916, 7336, 7410, 7467, 7860, 7980, 8190, 8253, 8515, 8645, 8892, 9170, 9432, 9576, 9880, 9956, 10218, 10374, 10920, 11004, 11115, 11790, 11921, 11970, 12445, 13624, 13755, 13832, 14820, 14934, 15327, 15561, 15720, 15960, 16380, 16506, 17030, 17290, 17423, 17784, 18340, 19912, 20436, 20748, 22008, 22230, 22401, 23580, 23842, 23940, 24890, 25545, 25935, 27510, 29640, 29868, 30654, 31122, 32357, 32760, 33012, 34060, 34580, 34846, 35763, 36680, 37335, 40872, 41265, 41496, 44460, 44802, 47160, 47684, 47880, 49780, 51090, 51870, 52269, 55020, 59605, 59736, 61308, 62244, 64714, 66024, 68120, 69160, 69692, 71526, 74670, 76635, 77805, 82530, 87115, 88920, 89604, 95368, 97071, 99560, 102180, 103740, 104538, 107289, 110040, 112005, 119210, 122616, 124488, 129428, 139384, 143052, 149340, 153270, 155610, 156807, 161785, 165060, 174230, 178815, 179208, 194142, 204360, 207480, 209076, 214578, 224010, 226499, 238420, 258856, 261345, 286104, 291213, 298680, 306540, 311220, 313614, 323570, 330120, 348460, 357630, 388284, 418152, 429156, 448020, 452998, 476840, 485355, 522690, 536445, 582426, 613080, 622440, 627228, 647140, 679497, 696920, 715260, 776568, 784035, 858312, 896040, 905996, 970710, 1045380, 1072890, 1132495, 1164852, 1254456, 1294280, 1358994, 1430520, 1456065, 1568070, 1811992, 1941420, 2038491, 2090760, 2145780, 2264990, 2329704, 2717988, 2912130, 3136140, 3397485, 3882840, 4076982, 4291560, 4529980, 5435976, 5824260, 6272280, 6794970, 8153964, 9059960, 10192455, 11648520, 13589940, 16307928, 20384910, 27179880, 40769820, 81539640]

約数ペア:

[(1, 81539640), (2, 40769820), (3, 27179880), (4, 20384910), (5, 16307928), (6, 13589940), (7, 11648520), (8, 10192455), (9, 9059960), (10, 8153964), (12, 6794970), (13, 6272280), (14, 5824260), (15, 5435976), (18, 4529980), (19, 4291560), (20, 4076982), (21, 3882840), (24, 3397485), (26, 3136140), (28, 2912130), (30, 2717988), (35, 2329704), (36, 2264990), (38, 2145780), (39, 2090760), (40, 2038491), (42, 1941420), (45, 1811992), (52, 1568070), (56, 1456065), (57, 1430520), (60, 1358994), (63, 1294280), (65, 1254456), (70, 1164852), (72, 1132495), (76, 1072890), (78, 1045380), (84, 970710), (90, 905996), (91, 896040), (95, 858312), (104, 784035), (105, 776568), (114, 715260), (117, 696920), (120, 679497), (126, 647140), (130, 627228), (131, 622440), (133, 613080), (140, 582426), (152, 536445), (156, 522690), (168, 485355), (171, 476840), (180, 452998), (182, 448020), (190, 429156), (195, 418152), (210, 388284), (228, 357630), (234, 348460), (247, 330120), (252, 323570), (260, 313614), (262, 311220), (266, 306540), (273, 298680), (280, 291213), (285, 286104), (312, 261345), (315, 258856), (342, 238420), (360, 226499), (364, 224010), (380, 214578), (390, 209076), (393, 207480), (399, 204360), (420, 194142), (455, 179208), (456, 178815), (468, 174230), (494, 165060), (504, 161785), (520, 156807), (524, 155610), (532, 153270), (546, 149340), (570, 143052), (585, 139384), (630, 129428), (655, 124488), (665, 122616), (684, 119210), (728, 112005), (741, 110040), (760, 107289), (780, 104538), (786, 103740), (798, 102180), (819, 99560), (840, 97071), (855, 95368), (910, 89604), (917, 88920), (936, 87115), (988, 82530), (1048, 77805), (1064, 76635), (1092, 74670), (1140, 71526), (1170, 69692), (1179, 69160), (1197, 68120), (1235, 66024), (1260, 64714), (1310, 62244), (1330, 61308), (1365, 59736), (1368, 59605), (1482, 55020), (1560, 52269), (1572, 51870), (1596, 51090), (1638, 49780), (1703, 47880), (1710, 47684), (1729, 47160), (1820, 44802), (1834, 44460), (1965, 41496), (1976, 41265), (1995, 40872), (2184, 37335), (2223, 36680), (2280, 35763), (2340, 34846), (2358, 34580), (2394, 34060), (2470, 33012), (2489, 32760), (2520, 32357), (2620, 31122), (2660, 30654), (2730, 29868), (2751, 29640), (2964, 27510), (3144, 25935), (3192, 25545), (3276, 24890), (3406, 23940), (3420, 23842), (3458, 23580), (3640, 22401), (3668, 22230), (3705, 22008), (3930, 20748), (3990, 20436), (4095, 19912), (4446, 18340), (4585, 17784), (4680, 17423), (4716, 17290), (4788, 17030), (4940, 16506), (4978, 16380), (5109, 15960), (5187, 15720), (5240, 15561), (5320, 15327), (5460, 14934), (5502, 14820), (5895, 13832), (5928, 13755), (5985, 13624), (6552, 12445), (6812, 11970), (6840, 11921), (6916, 11790), (7336, 11115), (7410, 11004), (7467, 10920), (7860, 10374), (7980, 10218), (8190, 9956), (8253, 9880), (8515, 9576), (8645, 9432), (8892, 9170)]