8117920

素因数分解:

$2^5\times 5^1\times {\mathrm{113}}^1\times {\mathrm{449}}^1$

素因数の和:577

約数の個数: 48

約数和(自身を含む): 19391400

約数和(自身を除く): 11273480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 113, 160, 226, 449, 452, 565, 898, 904, 1130, 1796, 1808, 2245, 2260, 3592, 3616, 4490, 4520, 7184, 8980, 9040, 14368, 17960, 18080, 35920, 50737, 71840, 101474, 202948, 253685, 405896, 507370, 811792, 1014740, 1623584, 2029480, 4058960, 8117920]

約数ペア:

[(1, 8117920), (2, 4058960), (4, 2029480), (5, 1623584), (8, 1014740), (10, 811792), (16, 507370), (20, 405896), (32, 253685), (40, 202948), (80, 101474), (113, 71840), (160, 50737), (226, 35920), (449, 18080), (452, 17960), (565, 14368), (898, 9040), (904, 8980), (1130, 7184), (1796, 4520), (1808, 4490), (2245, 3616), (2260, 3592)]