81628984

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{137}}^1\times {\mathrm{1049}}^1$

素因数の和:1263

約数の個数: 32

約数和(自身を含む): 156492000

約数和(自身を除く): 74863016

約数列:

[1, 2, 4, 8, 71, 137, 142, 274, 284, 548, 568, 1049, 1096, 2098, 4196, 8392, 9727, 19454, 38908, 74479, 77816, 143713, 148958, 287426, 297916, 574852, 595832, 1149704, 10203623, 20407246, 40814492, 81628984]

約数ペア:

[(1, 81628984), (2, 40814492), (4, 20407246), (8, 10203623), (71, 1149704), (137, 595832), (142, 574852), (274, 297916), (284, 287426), (548, 148958), (568, 143713), (1049, 77816), (1096, 74479), (2098, 38908), (4196, 19454), (8392, 9727)]