81173680

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3371}}^1$

素因数の和:3434

約数の個数: 80

約数和(自身を含む): 220771584

約数和(自身を除く): 139597904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 43, 56, 70, 80, 86, 112, 140, 172, 215, 280, 301, 344, 430, 560, 602, 688, 860, 1204, 1505, 1720, 2408, 3010, 3371, 3440, 4816, 6020, 6742, 12040, 13484, 16855, 23597, 24080, 26968, 33710, 47194, 53936, 67420, 94388, 117985, 134840, 144953, 188776, 235970, 269680, 289906, 377552, 471940, 579812, 724765, 943880, 1014671, 1159624, 1449530, 1887760, 2029342, 2319248, 2899060, 4058684, 5073355, 5798120, 8117368, 10146710, 11596240, 16234736, 20293420, 40586840, 81173680]

約数ペア:

[(1, 81173680), (2, 40586840), (4, 20293420), (5, 16234736), (7, 11596240), (8, 10146710), (10, 8117368), (14, 5798120), (16, 5073355), (20, 4058684), (28, 2899060), (35, 2319248), (40, 2029342), (43, 1887760), (56, 1449530), (70, 1159624), (80, 1014671), (86, 943880), (112, 724765), (140, 579812), (172, 471940), (215, 377552), (280, 289906), (301, 269680), (344, 235970), (430, 188776), (560, 144953), (602, 134840), (688, 117985), (860, 94388), (1204, 67420), (1505, 53936), (1720, 47194), (2408, 33710), (3010, 26968), (3371, 24080), (3440, 23597), (4816, 16855), (6020, 13484), (6742, 12040)]