139988920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{30971}}^1$

素因数の和:31095

約数の個数: 32

約数和(自身を含む): 317772720

約数和(自身を除く): 177783800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 4520, 30971, 61942, 123884, 154855, 247768, 309710, 619420, 1238840, 3499723, 6999446, 13998892, 17498615, 27997784, 34997230, 69994460, 139988920]

約数ペア:

[(1, 139988920), (2, 69994460), (4, 34997230), (5, 27997784), (8, 17498615), (10, 13998892), (20, 6999446), (40, 3499723), (113, 1238840), (226, 619420), (452, 309710), (565, 247768), (904, 154855), (1130, 123884), (2260, 61942), (4520, 30971)]