439043540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1688629}}^1$

素因数の和:1688651

約数の個数: 24

約数和(自身を含む): 992914440

約数和(自身を除く): 553870900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1688629, 3377258, 6754516, 8443145, 16886290, 21952177, 33772580, 43904354, 87808708, 109760885, 219521770, 439043540]

約数ペア:

[(1, 439043540), (2, 219521770), (4, 109760885), (5, 87808708), (10, 43904354), (13, 33772580), (20, 21952177), (26, 16886290), (52, 8443145), (65, 6754516), (130, 3377258), (260, 1688629)]