31155920

素因数分解:

$2^4\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2039}}^1$

素因数の和:2243

約数の個数: 40

約数和(自身を含む): 72852480

約数和(自身を除く): 41696560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 191, 382, 764, 955, 1528, 1910, 2039, 3056, 3820, 4078, 7640, 8156, 10195, 15280, 16312, 20390, 32624, 40780, 81560, 163120, 389449, 778898, 1557796, 1947245, 3115592, 3894490, 6231184, 7788980, 15577960, 31155920]

約数ペア:

[(1, 31155920), (2, 15577960), (4, 7788980), (5, 6231184), (8, 3894490), (10, 3115592), (16, 1947245), (20, 1557796), (40, 778898), (80, 389449), (191, 163120), (382, 81560), (764, 40780), (955, 32624), (1528, 20390), (1910, 16312), (2039, 15280), (3056, 10195), (3820, 8156), (4078, 7640)]