641325565

素因数分解:

$5^1\times {\mathrm{131}}^1\times {\mathrm{271}}^1\times {\mathrm{3613}}^1$

素因数の和:4020

約数の個数: 16

約数和(自身を含む): 778542336

約数和(自身を除く): 137216771

約数列:

[1, 5, 131, 271, 655, 1355, 3613, 18065, 35501, 177505, 473303, 979123, 2366515, 4895615, 128265113, 641325565]

約数ペア:

[(1, 641325565), (5, 128265113), (131, 4895615), (271, 2366515), (655, 979123), (1355, 473303), (3613, 177505), (18065, 35501)]