13428920

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2971}}^1$

素因数の和:3095

約数の個数: 32

約数和(自身を含む): 30492720

約数和(自身を除く): 17063800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 2971, 4520, 5942, 11884, 14855, 23768, 29710, 59420, 118840, 335723, 671446, 1342892, 1678615, 2685784, 3357230, 6714460, 13428920]

約数ペア:

[(1, 13428920), (2, 6714460), (4, 3357230), (5, 2685784), (8, 1678615), (10, 1342892), (20, 671446), (40, 335723), (113, 118840), (226, 59420), (452, 29710), (565, 23768), (904, 14855), (1130, 11884), (2260, 5942), (2971, 4520)]