18984420

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 288

約数和(自身を含む): 75828480

約数和(自身を除く): 56844060

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 19, 20, 21, 26, 28, 30, 35, 36, 38, 39, 42, 45, 52, 57, 60, 61, 63, 65, 70, 76, 78, 84, 90, 91, 95, 105, 114, 117, 122, 126, 130, 133, 140, 156, 171, 180, 182, 183, 190, 195, 210, 228, 234, 244, 247, 252, 260, 266, 273, 285, 305, 315, 342, 364, 366, 380, 390, 399, 420, 427, 455, 468, 494, 532, 546, 549, 570, 585, 610, 630, 665, 684, 732, 741, 780, 793, 798, 819, 854, 855, 910, 915, 988, 1092, 1098, 1140, 1159, 1170, 1197, 1220, 1235, 1260, 1281, 1330, 1365, 1482, 1586, 1596, 1638, 1708, 1710, 1729, 1820, 1830, 1995, 2135, 2196, 2223, 2318, 2340, 2379, 2394, 2470, 2562, 2660, 2730, 2745, 2964, 3172, 3276, 3420, 3458, 3477, 3660, 3705, 3843, 3965, 3990, 4095, 4270, 4446, 4636, 4758, 4788, 4940, 5124, 5187, 5460, 5490, 5551, 5795, 5985, 6405, 6916, 6954, 7137, 7410, 7686, 7930, 7980, 8113, 8190, 8540, 8645, 8892, 9516, 10374, 10431, 10980, 11102, 11115, 11590, 11895, 11970, 12810, 13908, 14274, 14820, 15067, 15372, 15561, 15860, 16226, 16380, 16653, 17290, 17385, 19215, 20748, 20862, 22204, 22230, 23180, 23790, 23940, 24339, 25620, 25935, 27755, 28548, 30134, 31122, 32452, 33306, 34580, 34770, 35685, 38430, 40565, 41724, 44460, 45201, 47580, 48678, 49959, 51870, 52155, 55510, 60268, 62244, 66612, 69540, 71370, 73017, 75335, 76860, 77805, 81130, 83265, 90402, 97356, 99918, 103740, 104310, 105469, 111020, 121695, 135603, 142740, 146034, 150670, 155610, 162260, 166530, 180804, 199836, 208620, 210938, 226005, 243390, 249795, 271206, 292068, 301340, 311220, 316407, 333060, 365085, 421876, 452010, 486780, 499590, 527345, 542412, 632814, 678015, 730170, 904020, 949221, 999180, 1054690, 1265628, 1356030, 1460340, 1582035, 1898442, 2109380, 2712060, 3164070, 3796884, 4746105, 6328140, 9492210, 18984420]

約数ペア:

[(1, 18984420), (2, 9492210), (3, 6328140), (4, 4746105), (5, 3796884), (6, 3164070), (7, 2712060), (9, 2109380), (10, 1898442), (12, 1582035), (13, 1460340), (14, 1356030), (15, 1265628), (18, 1054690), (19, 999180), (20, 949221), (21, 904020), (26, 730170), (28, 678015), (30, 632814), (35, 542412), (36, 527345), (38, 499590), (39, 486780), (42, 452010), (45, 421876), (52, 365085), (57, 333060), (60, 316407), (61, 311220), (63, 301340), (65, 292068), (70, 271206), (76, 249795), (78, 243390), (84, 226005), (90, 210938), (91, 208620), (95, 199836), (105, 180804), (114, 166530), (117, 162260), (122, 155610), (126, 150670), (130, 146034), (133, 142740), (140, 135603), (156, 121695), (171, 111020), (180, 105469), (182, 104310), (183, 103740), (190, 99918), (195, 97356), (210, 90402), (228, 83265), (234, 81130), (244, 77805), (247, 76860), (252, 75335), (260, 73017), (266, 71370), (273, 69540), (285, 66612), (305, 62244), (315, 60268), (342, 55510), (364, 52155), (366, 51870), (380, 49959), (390, 48678), (399, 47580), (420, 45201), (427, 44460), (455, 41724), (468, 40565), (494, 38430), (532, 35685), (546, 34770), (549, 34580), (570, 33306), (585, 32452), (610, 31122), (630, 30134), (665, 28548), (684, 27755), (732, 25935), (741, 25620), (780, 24339), (793, 23940), (798, 23790), (819, 23180), (854, 22230), (855, 22204), (910, 20862), (915, 20748), (988, 19215), (1092, 17385), (1098, 17290), (1140, 16653), (1159, 16380), (1170, 16226), (1197, 15860), (1220, 15561), (1235, 15372), (1260, 15067), (1281, 14820), (1330, 14274), (1365, 13908), (1482, 12810), (1586, 11970), (1596, 11895), (1638, 11590), (1708, 11115), (1710, 11102), (1729, 10980), (1820, 10431), (1830, 10374), (1995, 9516), (2135, 8892), (2196, 8645), (2223, 8540), (2318, 8190), (2340, 8113), (2379, 7980), (2394, 7930), (2470, 7686), (2562, 7410), (2660, 7137), (2730, 6954), (2745, 6916), (2964, 6405), (3172, 5985), (3276, 5795), (3420, 5551), (3458, 5490), (3477, 5460), (3660, 5187), (3705, 5124), (3843, 4940), (3965, 4788), (3990, 4758), (4095, 4636), (4270, 4446)]