20851090

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{1499}}^1$

素因数の和:1626

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 19972910

約数列:

[1, 2, 5, 10, 13, 26, 65, 107, 130, 214, 535, 1070, 1391, 1499, 2782, 2998, 6955, 7495, 13910, 14990, 19487, 38974, 97435, 160393, 194870, 320786, 801965, 1603930, 2085109, 4170218, 10425545, 20851090]

約数ペア:

[(1, 20851090), (2, 10425545), (5, 4170218), (10, 2085109), (13, 1603930), (26, 801965), (65, 320786), (107, 194870), (130, 160393), (214, 97435), (535, 38974), (1070, 19487), (1391, 14990), (1499, 13910), (2782, 7495), (2998, 6955)]