257408930

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{887617}}^1$

素因数の和:887653

約数の個数: 16

約数和(自身を含む): 479313720

約数和(自身を除く): 221904790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 887617, 1775234, 4438085, 8876170, 25740893, 51481786, 128704465, 257408930]

約数ペア:

[(1, 257408930), (2, 128704465), (5, 51481786), (10, 25740893), (29, 8876170), (58, 4438085), (145, 1775234), (290, 887617)]