159656440

素因数分解:

$2^3\times 5^1\times {\mathrm{157}}^1\times {\mathrm{25423}}^1$

素因数の和:25591

約数の個数: 32

約数和(自身を含む): 361529280

約数和(自身を除く): 201872840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 157, 314, 628, 785, 1256, 1570, 3140, 6280, 25423, 50846, 101692, 127115, 203384, 254230, 508460, 1016920, 3991411, 7982822, 15965644, 19957055, 31931288, 39914110, 79828220, 159656440]

約数ペア:

[(1, 159656440), (2, 79828220), (4, 39914110), (5, 31931288), (8, 19957055), (10, 15965644), (20, 7982822), (40, 3991411), (157, 1016920), (314, 508460), (628, 254230), (785, 203384), (1256, 127115), (1570, 101692), (3140, 50846), (6280, 25423)]