128772016

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{259621}}^1$

素因数の和:259660

約数の個数: 20

約数和(自身を含む): 257545024

約数和(自身を除く): 128773008

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 259621, 519242, 1038484, 2076968, 4153936, 8048251, 16096502, 32193004, 64386008, 128772016]

約数ペア:

[(1, 128772016), (2, 64386008), (4, 32193004), (8, 16096502), (16, 8048251), (31, 4153936), (62, 2076968), (124, 1038484), (248, 519242), (496, 259621)]