87442120

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{15727}}^1$

素因数の和:15877

約数の個数: 32

約数和(自身を含む): 198172800

約数和(自身を除く): 110730680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 15727, 31454, 62908, 78635, 125816, 157270, 314540, 629080, 2186053, 4372106, 8744212, 10930265, 17488424, 21860530, 43721060, 87442120]

約数ペア:

[(1, 87442120), (2, 43721060), (4, 21860530), (5, 17488424), (8, 10930265), (10, 8744212), (20, 4372106), (40, 2186053), (139, 629080), (278, 314540), (556, 157270), (695, 125816), (1112, 78635), (1390, 62908), (2780, 31454), (5560, 15727)]