644672015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{31687}}^1$

素因数の和:32018

約数の個数: 16

約数和(自身を含む): 835802688

約数和(自身を除く): 191130673

約数列:

[1, 5, 13, 65, 313, 1565, 4069, 20345, 31687, 158435, 411931, 2059655, 9918031, 49590155, 128934403, 644672015]

約数ペア:

[(1, 644672015), (5, 128934403), (13, 49590155), (65, 9918031), (313, 2059655), (1565, 411931), (4069, 158435), (20345, 31687)]