8386820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{32257}}^1$

素因数の和:32279

約数の個数: 24

約数和(自身を含む): 18967704

約数和(自身を除く): 10580884

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 32257, 64514, 129028, 161285, 322570, 419341, 645140, 838682, 1677364, 2096705, 4193410, 8386820]

約数ペア:

[(1, 8386820), (2, 4193410), (4, 2096705), (5, 1677364), (10, 838682), (13, 645140), (20, 419341), (26, 322570), (52, 161285), (65, 129028), (130, 64514), (260, 32257)]