64487824

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{212131}}^1$

素因数の和:212158

約数の個数: 20

約数和(自身を含む): 131521840

約数和(自身を除く): 67034016

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 212131, 424262, 848524, 1697048, 3394096, 4030489, 8060978, 16121956, 32243912, 64487824]

約数ペア:

[(1, 64487824), (2, 32243912), (4, 16121956), (8, 8060978), (16, 4030489), (19, 3394096), (38, 1697048), (76, 848524), (152, 424262), (304, 212131)]