70815980

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1\times {\mathrm{179}}^1$

素因数の和:470

約数の個数: 48

約数和(自身を含む): 151683840

約数和(自身を除く): 80867860

約数列:

[1, 2, 4, 5, 10, 20, 131, 151, 179, 262, 302, 358, 524, 604, 655, 716, 755, 895, 1310, 1510, 1790, 2620, 3020, 3580, 19781, 23449, 27029, 39562, 46898, 54058, 79124, 93796, 98905, 108116, 117245, 135145, 197810, 234490, 270290, 395620, 468980, 540580, 3540799, 7081598, 14163196, 17703995, 35407990, 70815980]

約数ペア:

[(1, 70815980), (2, 35407990), (4, 17703995), (5, 14163196), (10, 7081598), (20, 3540799), (131, 540580), (151, 468980), (179, 395620), (262, 270290), (302, 234490), (358, 197810), (524, 135145), (604, 117245), (655, 108116), (716, 98905), (755, 93796), (895, 79124), (1310, 54058), (1510, 46898), (1790, 39562), (2620, 27029), (3020, 23449), (3580, 19781)]