258788990

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{327581}}^1$

素因数の和:327667

約数の個数: 16

約数和(自身を含む): 471718080

約数和(自身を除く): 212929090

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 327581, 655162, 1637905, 3275810, 25878899, 51757798, 129394495, 258788990]

約数ペア:

[(1, 258788990), (2, 129394495), (5, 51757798), (10, 25878899), (79, 3275810), (158, 1637905), (395, 655162), (790, 327581)]