128451728

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{472249}}^1$

素因数の和:472274

約数の個数: 20

約数和(自身を含む): 263515500

約数和(自身を除く): 135063772

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 472249, 944498, 1888996, 3777992, 7555984, 8028233, 16056466, 32112932, 64225864, 128451728]

約数ペア:

[(1, 128451728), (2, 64225864), (4, 32112932), (8, 16056466), (16, 8028233), (17, 7555984), (34, 3777992), (68, 1888996), (136, 944498), (272, 472249)]