261816815

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{569}}^1\times {\mathrm{7079}}^1$

素因数の和:7666

約数の個数: 16

約数和(自身を含む): 338990400

約数和(自身を除く): 77173585

約数列:

[1, 5, 13, 65, 569, 2845, 7079, 7397, 35395, 36985, 92027, 460135, 4027951, 20139755, 52363363, 261816815]

約数ペア:

[(1, 261816815), (5, 52363363), (13, 20139755), (65, 4027951), (569, 460135), (2845, 92027), (7079, 36985), (7397, 35395)]