31035920

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2791}}^1$

素因数の和:2943

約数の個数: 40

約数和(自身を含む): 72703680

約数和(自身を除く): 41667760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 2791, 5560, 5582, 11120, 11164, 13955, 22328, 27910, 44656, 55820, 111640, 223280, 387949, 775898, 1551796, 1939745, 3103592, 3879490, 6207184, 7758980, 15517960, 31035920]

約数ペア:

[(1, 31035920), (2, 15517960), (4, 7758980), (5, 6207184), (8, 3879490), (10, 3103592), (16, 1939745), (20, 1551796), (40, 775898), (80, 387949), (139, 223280), (278, 111640), (556, 55820), (695, 44656), (1112, 27910), (1390, 22328), (2224, 13955), (2780, 11164), (2791, 11120), (5560, 5582)]