128867248

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{259813}}^1$

素因数の和:259852

約数の個数: 20

約数和(自身を含む): 257735488

約数和(自身を除く): 128868240

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 259813, 519626, 1039252, 2078504, 4157008, 8054203, 16108406, 32216812, 64433624, 128867248]

約数ペア:

[(1, 128867248), (2, 64433624), (4, 32216812), (8, 16108406), (16, 8054203), (31, 4157008), (62, 2078504), (124, 1039252), (248, 519626), (496, 259813)]