31312040

素因数分解:

$2^3\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1277}}^1$

素因数の和:1901

約数の個数: 32

約数和(自身を含む): 70622280

約数和(自身を除く): 39310240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 613, 1226, 1277, 2452, 2554, 3065, 4904, 5108, 6130, 6385, 10216, 12260, 12770, 24520, 25540, 51080, 782801, 1565602, 3131204, 3914005, 6262408, 7828010, 15656020, 31312040]

約数ペア:

[(1, 31312040), (2, 15656020), (4, 7828010), (5, 6262408), (8, 3914005), (10, 3131204), (20, 1565602), (40, 782801), (613, 51080), (1226, 25540), (1277, 24520), (2452, 12770), (2554, 12260), (3065, 10216), (4904, 6385), (5108, 6130)]