8941540

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{691}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 18833472

約数和(自身を除く): 9891932

約数列:

[1, 2, 4, 5, 10, 20, 647, 691, 1294, 1382, 2588, 2764, 3235, 3455, 6470, 6910, 12940, 13820, 447077, 894154, 1788308, 2235385, 4470770, 8941540]

約数ペア:

[(1, 8941540), (2, 4470770), (4, 2235385), (5, 1788308), (10, 894154), (20, 447077), (647, 13820), (691, 12940), (1294, 6910), (1382, 6470), (2588, 3455), (2764, 3235)]