256856848

素因数分解:

$2^4\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{2957}}^1$

素因数の和:3115

約数の個数: 40

約数和(自身を含む): 511674840

約数和(自身を除く): 254817992

約数列:

[1, 2, 4, 8, 16, 61, 89, 122, 178, 244, 356, 488, 712, 976, 1424, 2957, 5429, 5914, 10858, 11828, 21716, 23656, 43432, 47312, 86864, 180377, 263173, 360754, 526346, 721508, 1052692, 1443016, 2105384, 2886032, 4210768, 16053553, 32107106, 64214212, 128428424, 256856848]

約数ペア:

[(1, 256856848), (2, 128428424), (4, 64214212), (8, 32107106), (16, 16053553), (61, 4210768), (89, 2886032), (122, 2105384), (178, 1443016), (244, 1052692), (356, 721508), (488, 526346), (712, 360754), (976, 263173), (1424, 180377), (2957, 86864), (5429, 47312), (5914, 43432), (10858, 23656), (11828, 21716)]