81393040

素因数分解:

$2^4\times 5^1\times {\mathrm{173}}^1\times {\mathrm{5881}}^1$

素因数の和:6067

約数の個数: 40

約数和(自身を含む): 190365048

約数和(自身を除く): 108972008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 173, 346, 692, 865, 1384, 1730, 2768, 3460, 5881, 6920, 11762, 13840, 23524, 29405, 47048, 58810, 94096, 117620, 235240, 470480, 1017413, 2034826, 4069652, 5087065, 8139304, 10174130, 16278608, 20348260, 40696520, 81393040]

約数ペア:

[(1, 81393040), (2, 40696520), (4, 20348260), (5, 16278608), (8, 10174130), (10, 8139304), (16, 5087065), (20, 4069652), (40, 2034826), (80, 1017413), (173, 470480), (346, 235240), (692, 117620), (865, 94096), (1384, 58810), (1730, 47048), (2768, 29405), (3460, 23524), (5881, 13840), (6920, 11762)]