839540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3229}}^1$

素因数の和:3251

約数の個数: 24

約数和(自身を含む): 1899240

約数和(自身を除く): 1059700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 3229, 6458, 12916, 16145, 32290, 41977, 64580, 83954, 167908, 209885, 419770, 839540]

約数ペア:

[(1, 839540), (2, 419770), (4, 209885), (5, 167908), (10, 83954), (13, 64580), (20, 41977), (26, 32290), (52, 16145), (65, 12916), (130, 6458), (260, 3229)]