31253980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:370

約数の個数: 48

約数和(自身を含む): 67415040

約数和(自身を除く): 36161060

約数列:

[1, 2, 4, 5, 10, 20, 79, 131, 151, 158, 262, 302, 316, 395, 524, 604, 655, 755, 790, 1310, 1510, 1580, 2620, 3020, 10349, 11929, 19781, 20698, 23858, 39562, 41396, 47716, 51745, 59645, 79124, 98905, 103490, 119290, 197810, 206980, 238580, 395620, 1562699, 3125398, 6250796, 7813495, 15626990, 31253980]

約数ペア:

[(1, 31253980), (2, 15626990), (4, 7813495), (5, 6250796), (10, 3125398), (20, 1562699), (79, 395620), (131, 238580), (151, 206980), (158, 197810), (262, 119290), (302, 103490), (316, 98905), (395, 79124), (524, 59645), (604, 51745), (655, 47716), (755, 41396), (790, 39562), (1310, 23858), (1510, 20698), (1580, 19781), (2620, 11929), (3020, 10349)]