56656340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{217909}}^1$

素因数の和:217931

約数の個数: 24

約数和(自身を含む): 128131080

約数和(自身を除く): 71474740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 217909, 435818, 871636, 1089545, 2179090, 2832817, 4358180, 5665634, 11331268, 14164085, 28328170, 56656340]

約数ペア:

[(1, 56656340), (2, 28328170), (4, 14164085), (5, 11331268), (10, 5665634), (13, 4358180), (20, 2832817), (26, 2179090), (52, 1089545), (65, 871636), (130, 435818), (260, 217909)]