128876456

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{947621}}^1$

素因数の和:947644

約数の個数: 16

約数和(自身を含む): 255857940

約数和(自身を除く): 126981484

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 947621, 1895242, 3790484, 7580968, 16109557, 32219114, 64438228, 128876456]

約数ペア:

[(1, 128876456), (2, 64438228), (4, 32219114), (8, 16109557), (17, 7580968), (34, 3790484), (68, 1895242), (136, 947621)]