161331640

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{139079}}^1$

素因数の和:139119

約数の個数: 32

約数和(自身を含む): 375516000

約数和(自身を除く): 214184360

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 116, 145, 232, 290, 580, 1160, 139079, 278158, 556316, 695395, 1112632, 1390790, 2781580, 4033291, 5563160, 8066582, 16133164, 20166455, 32266328, 40332910, 80665820, 161331640]

約数ペア:

[(1, 161331640), (2, 80665820), (4, 40332910), (5, 32266328), (8, 20166455), (10, 16133164), (20, 8066582), (29, 5563160), (40, 4033291), (58, 2781580), (116, 1390790), (145, 1112632), (232, 695395), (290, 556316), (580, 278158), (1160, 139079)]