18771480

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:231

約数の個数: 256

約数和(自身を含む): 77414400

約数和(自身を除く): 58642920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 18, 20, 21, 24, 26, 27, 28, 30, 35, 36, 39, 40, 42, 45, 52, 54, 56, 60, 63, 65, 70, 72, 78, 84, 90, 91, 104, 105, 108, 117, 120, 126, 130, 135, 140, 156, 168, 180, 182, 189, 191, 195, 210, 216, 234, 252, 260, 270, 273, 280, 312, 315, 351, 360, 364, 378, 382, 390, 420, 455, 468, 504, 520, 540, 546, 573, 585, 630, 702, 728, 756, 764, 780, 819, 840, 910, 936, 945, 955, 1080, 1092, 1146, 1170, 1260, 1337, 1365, 1404, 1512, 1528, 1560, 1638, 1719, 1755, 1820, 1890, 1910, 2184, 2292, 2340, 2457, 2483, 2520, 2674, 2730, 2808, 2865, 3276, 3438, 3510, 3640, 3780, 3820, 4011, 4095, 4584, 4680, 4914, 4966, 5157, 5348, 5460, 5730, 6552, 6685, 6876, 7020, 7449, 7560, 7640, 8022, 8190, 8595, 9828, 9932, 10314, 10696, 10920, 11460, 12033, 12285, 12415, 13370, 13752, 14040, 14898, 16044, 16380, 17190, 17381, 19656, 19864, 20055, 20628, 22347, 22920, 24066, 24570, 24830, 25785, 26740, 29796, 32088, 32760, 34380, 34762, 36099, 37245, 40110, 41256, 44694, 48132, 49140, 49660, 51570, 52143, 53480, 59592, 60165, 67041, 68760, 69524, 72198, 74490, 80220, 86905, 89388, 96264, 98280, 99320, 103140, 104286, 111735, 120330, 134082, 139048, 144396, 148980, 156429, 160440, 173810, 178776, 180495, 206280, 208572, 223470, 240660, 260715, 268164, 288792, 297960, 312858, 335205, 347620, 360990, 417144, 446940, 469287, 481320, 521430, 536328, 625716, 670410, 695240, 721980, 782145, 893880, 938574, 1042860, 1251432, 1340820, 1443960, 1564290, 1877148, 2085720, 2346435, 2681640, 3128580, 3754296, 4692870, 6257160, 9385740, 18771480]

約数ペア:

[(1, 18771480), (2, 9385740), (3, 6257160), (4, 4692870), (5, 3754296), (6, 3128580), (7, 2681640), (8, 2346435), (9, 2085720), (10, 1877148), (12, 1564290), (13, 1443960), (14, 1340820), (15, 1251432), (18, 1042860), (20, 938574), (21, 893880), (24, 782145), (26, 721980), (27, 695240), (28, 670410), (30, 625716), (35, 536328), (36, 521430), (39, 481320), (40, 469287), (42, 446940), (45, 417144), (52, 360990), (54, 347620), (56, 335205), (60, 312858), (63, 297960), (65, 288792), (70, 268164), (72, 260715), (78, 240660), (84, 223470), (90, 208572), (91, 206280), (104, 180495), (105, 178776), (108, 173810), (117, 160440), (120, 156429), (126, 148980), (130, 144396), (135, 139048), (140, 134082), (156, 120330), (168, 111735), (180, 104286), (182, 103140), (189, 99320), (191, 98280), (195, 96264), (210, 89388), (216, 86905), (234, 80220), (252, 74490), (260, 72198), (270, 69524), (273, 68760), (280, 67041), (312, 60165), (315, 59592), (351, 53480), (360, 52143), (364, 51570), (378, 49660), (382, 49140), (390, 48132), (420, 44694), (455, 41256), (468, 40110), (504, 37245), (520, 36099), (540, 34762), (546, 34380), (573, 32760), (585, 32088), (630, 29796), (702, 26740), (728, 25785), (756, 24830), (764, 24570), (780, 24066), (819, 22920), (840, 22347), (910, 20628), (936, 20055), (945, 19864), (955, 19656), (1080, 17381), (1092, 17190), (1146, 16380), (1170, 16044), (1260, 14898), (1337, 14040), (1365, 13752), (1404, 13370), (1512, 12415), (1528, 12285), (1560, 12033), (1638, 11460), (1719, 10920), (1755, 10696), (1820, 10314), (1890, 9932), (1910, 9828), (2184, 8595), (2292, 8190), (2340, 8022), (2457, 7640), (2483, 7560), (2520, 7449), (2674, 7020), (2730, 6876), (2808, 6685), (2865, 6552), (3276, 5730), (3438, 5460), (3510, 5348), (3640, 5157), (3780, 4966), (3820, 4914), (4011, 4680), (4095, 4584)]