67401640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:466

約数の個数: 64

約数和(自身を含む): 156816000

約数和(自身を除く): 89414360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 149, 172, 215, 263, 298, 344, 430, 526, 596, 745, 860, 1052, 1192, 1315, 1490, 1720, 2104, 2630, 2980, 5260, 5960, 6407, 10520, 11309, 12814, 22618, 25628, 32035, 39187, 45236, 51256, 56545, 64070, 78374, 90472, 113090, 128140, 156748, 195935, 226180, 256280, 313496, 391870, 452360, 783740, 1567480, 1685041, 3370082, 6740164, 8425205, 13480328, 16850410, 33700820, 67401640]

約数ペア:

[(1, 67401640), (2, 33700820), (4, 16850410), (5, 13480328), (8, 8425205), (10, 6740164), (20, 3370082), (40, 1685041), (43, 1567480), (86, 783740), (149, 452360), (172, 391870), (215, 313496), (263, 256280), (298, 226180), (344, 195935), (430, 156748), (526, 128140), (596, 113090), (745, 90472), (860, 78374), (1052, 64070), (1192, 56545), (1315, 51256), (1490, 45236), (1720, 39187), (2104, 32035), (2630, 25628), (2980, 22618), (5260, 12814), (5960, 11309), (6407, 10520)]