4388920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{971}}^1$

素因数の和:1095

約数の個数: 32

約数和(自身を含む): 9972720

約数和(自身を除く): 5583800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 971, 1130, 1942, 2260, 3884, 4520, 4855, 7768, 9710, 19420, 38840, 109723, 219446, 438892, 548615, 877784, 1097230, 2194460, 4388920]

約数ペア:

[(1, 4388920), (2, 2194460), (4, 1097230), (5, 877784), (8, 548615), (10, 438892), (20, 219446), (40, 109723), (113, 38840), (226, 19420), (452, 9710), (565, 7768), (904, 4855), (971, 4520), (1130, 3884), (1942, 2260)]