256917890

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{626629}}^1$

素因数の和:626677

約数の個数: 16

約数和(自身を含む): 473732280

約数和(自身を除く): 216814390

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 626629, 1253258, 3133145, 6266290, 25691789, 51383578, 128458945, 256917890]

約数ペア:

[(1, 256917890), (2, 128458945), (5, 51383578), (10, 25691789), (41, 6266290), (82, 3133145), (205, 1253258), (410, 626629)]