257702990

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{888631}}^1$

素因数の和:888667

約数の個数: 16

約数和(自身を含む): 479861280

約数和(自身を除く): 222158290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 888631, 1777262, 4443155, 8886310, 25770299, 51540598, 128851495, 257702990]

約数ペア:

[(1, 257702990), (2, 128851495), (5, 51540598), (10, 25770299), (29, 8886310), (58, 4443155), (145, 1777262), (290, 888631)]