31007860

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{239}}^1\times {\mathrm{499}}^1$

素因数の和:760

約数の個数: 48

約数和(自身を含む): 70560000

約数和(自身を除く): 39552140

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 239, 260, 478, 499, 956, 998, 1195, 1996, 2390, 2495, 3107, 4780, 4990, 6214, 6487, 9980, 12428, 12974, 15535, 25948, 31070, 32435, 62140, 64870, 119261, 129740, 238522, 477044, 596305, 1192610, 1550393, 2385220, 3100786, 6201572, 7751965, 15503930, 31007860]

約数ペア:

[(1, 31007860), (2, 15503930), (4, 7751965), (5, 6201572), (10, 3100786), (13, 2385220), (20, 1550393), (26, 1192610), (52, 596305), (65, 477044), (130, 238522), (239, 129740), (260, 119261), (478, 64870), (499, 62140), (956, 32435), (998, 31070), (1195, 25948), (1996, 15535), (2390, 12974), (2495, 12428), (3107, 9980), (4780, 6487), (4990, 6214)]