20103128

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{787}}^1$

素因数の和:927

約数の個数: 32

約数和(自身を含む): 39336960

約数和(自身を除く): 19233832

約数列:

[1, 2, 4, 8, 31, 62, 103, 124, 206, 248, 412, 787, 824, 1574, 3148, 3193, 6296, 6386, 12772, 24397, 25544, 48794, 81061, 97588, 162122, 195176, 324244, 648488, 2512891, 5025782, 10051564, 20103128]

約数ペア:

[(1, 20103128), (2, 10051564), (4, 5025782), (8, 2512891), (31, 648488), (62, 324244), (103, 195176), (124, 162122), (206, 97588), (248, 81061), (412, 48794), (787, 25544), (824, 24397), (1574, 12772), (3148, 6386), (3193, 6296)]