261097590

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{669481}}^1$

素因数の和:669504

約数の個数: 32

約数和(自身を含む): 674837856

約数和(自身を除く): 413740266

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 669481, 1338962, 2008443, 3347405, 4016886, 6694810, 8703253, 10042215, 17406506, 20084430, 26109759, 43516265, 52219518, 87032530, 130548795, 261097590]

約数ペア:

[(1, 261097590), (2, 130548795), (3, 87032530), (5, 52219518), (6, 43516265), (10, 26109759), (13, 20084430), (15, 17406506), (26, 10042215), (30, 8703253), (39, 6694810), (65, 4016886), (78, 3347405), (130, 2008443), (195, 1338962), (390, 669481)]