31908680

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{5081}}^1$

素因数の和:5249

約数の個数: 32

約数和(自身を含む): 72266040

約数和(自身を除く): 40357360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 5081, 6280, 10162, 20324, 25405, 40648, 50810, 101620, 203240, 797717, 1595434, 3190868, 3988585, 6381736, 7977170, 15954340, 31908680]

約数ペア:

[(1, 31908680), (2, 15954340), (4, 7977170), (5, 6381736), (8, 3988585), (10, 3190868), (20, 1595434), (40, 797717), (157, 203240), (314, 101620), (628, 50810), (785, 40648), (1256, 25405), (1570, 20324), (3140, 10162), (5081, 6280)]