31856680

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{6271}}^1$

素因数の和:6409

約数の個数: 32

約数和(自身を含む): 72253440

約数和(自身を除く): 40396760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 6271, 12542, 25084, 31355, 50168, 62710, 125420, 250840, 796417, 1592834, 3185668, 3982085, 6371336, 7964170, 15928340, 31856680]

約数ペア:

[(1, 31856680), (2, 15928340), (4, 7964170), (5, 6371336), (8, 3982085), (10, 3185668), (20, 1592834), (40, 796417), (127, 250840), (254, 125420), (508, 62710), (635, 50168), (1016, 31355), (1270, 25084), (2540, 12542), (5080, 6271)]