289203980

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1112323}}^1$

素因数の和:1112345

約数の個数: 24

約数和(自身を含む): 654046512

約数和(自身を除く): 364842532

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1112323, 2224646, 4449292, 5561615, 11123230, 14460199, 22246460, 28920398, 57840796, 72300995, 144601990, 289203980]

約数ペア:

[(1, 289203980), (2, 144601990), (4, 72300995), (5, 57840796), (10, 28920398), (13, 22246460), (20, 14460199), (26, 11123230), (52, 5561615), (65, 4449292), (130, 2224646), (260, 1112323)]