805412920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1548871}}^1$

素因数の和:1548895

約数の個数: 32

約数和(自身を含む): 1951578720

約数和(自身を除く): 1146165800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 1548871, 3097742, 6195484, 7744355, 12390968, 15488710, 20135323, 30977420, 40270646, 61954840, 80541292, 100676615, 161082584, 201353230, 402706460, 805412920]

約数ペア:

[(1, 805412920), (2, 402706460), (4, 201353230), (5, 161082584), (8, 100676615), (10, 80541292), (13, 61954840), (20, 40270646), (26, 30977420), (40, 20135323), (52, 15488710), (65, 12390968), (104, 7744355), (130, 6195484), (260, 3097742), (520, 1548871)]