685839778

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{161831}}^1$

素因数の和:162009

約数の個数: 16

約数和(自身を含む): 1114698816

約数和(自身を除く): 428859038

約数列:

[1, 2, 13, 26, 163, 326, 2119, 4238, 161831, 323662, 2103803, 4207606, 26378453, 52756906, 342919889, 685839778]

約数ペア:

[(1, 685839778), (2, 342919889), (13, 52756906), (26, 26378453), (163, 4207606), (326, 2103803), (2119, 323662), (4238, 161831)]