1557688820

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{151}}^1\times {\mathrm{6529}}^1$

素因数の和:6768

約数の個数: 48

約数和(自身を含む): 3335001600

約数和(自身を除く): 1777312780

約数列:

[1, 2, 4, 5, 10, 20, 79, 151, 158, 302, 316, 395, 604, 755, 790, 1510, 1580, 3020, 6529, 11929, 13058, 23858, 26116, 32645, 47716, 59645, 65290, 119290, 130580, 238580, 515791, 985879, 1031582, 1971758, 2063164, 2578955, 3943516, 4929395, 5157910, 9858790, 10315820, 19717580, 77884441, 155768882, 311537764, 389422205, 778844410, 1557688820]

約数ペア:

[(1, 1557688820), (2, 778844410), (4, 389422205), (5, 311537764), (10, 155768882), (20, 77884441), (79, 19717580), (151, 10315820), (158, 9858790), (302, 5157910), (316, 4929395), (395, 3943516), (604, 2578955), (755, 2063164), (790, 1971758), (1510, 1031582), (1580, 985879), (3020, 515791), (6529, 238580), (11929, 130580), (13058, 119290), (23858, 65290), (26116, 59645), (32645, 47716)]