40004432

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{2161}}^1$

素因数の和:2271

約数の個数: 40

約数和(自身を含む): 84447720

約数和(自身を除く): 44443288

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 89, 104, 178, 208, 356, 712, 1157, 1424, 2161, 2314, 4322, 4628, 8644, 9256, 17288, 18512, 28093, 34576, 56186, 112372, 192329, 224744, 384658, 449488, 769316, 1538632, 2500277, 3077264, 5000554, 10001108, 20002216, 40004432]

約数ペア:

[(1, 40004432), (2, 20002216), (4, 10001108), (8, 5000554), (13, 3077264), (16, 2500277), (26, 1538632), (52, 769316), (89, 449488), (104, 384658), (178, 224744), (208, 192329), (356, 112372), (712, 56186), (1157, 34576), (1424, 28093), (2161, 18512), (2314, 17288), (4322, 9256), (4628, 8644)]