81981392

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{119159}}^1$

素因数の和:119210

約数の個数: 20

約数和(自身を含む): 162534240

約数和(自身を除く): 80552848

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 119159, 238318, 476636, 953272, 1906544, 5123837, 10247674, 20495348, 40990696, 81981392]

約数ペア:

[(1, 81981392), (2, 40990696), (4, 20495348), (8, 10247674), (16, 5123837), (43, 1906544), (86, 953272), (172, 476636), (344, 238318), (688, 119159)]