1640532920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{3154871}}^1$

素因数の和:3154895

約数の個数: 32

約数和(自身を含む): 3975138720

約数和(自身を除く): 2334605800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 3154871, 6309742, 12619484, 15774355, 25238968, 31548710, 41013323, 63097420, 82026646, 126194840, 164053292, 205066615, 328106584, 410133230, 820266460, 1640532920]

約数ペア:

[(1, 1640532920), (2, 820266460), (4, 410133230), (5, 328106584), (8, 205066615), (10, 164053292), (13, 126194840), (20, 82026646), (26, 63097420), (40, 41013323), (52, 31548710), (65, 25238968), (104, 15774355), (130, 12619484), (260, 6309742), (520, 3154871)]