77407820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{552913}}^1$

素因数の和:552929

約数の個数: 24

約数和(自身を含む): 185779104

約数和(自身を除く): 108371284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 552913, 1105826, 2211652, 2764565, 3870391, 5529130, 7740782, 11058260, 15481564, 19351955, 38703910, 77407820]

約数ペア:

[(1, 77407820), (2, 38703910), (4, 19351955), (5, 15481564), (7, 11058260), (10, 7740782), (14, 5529130), (20, 3870391), (28, 2764565), (35, 2211652), (70, 1105826), (140, 552913)]