64521872

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{212243}}^1$

素因数の和:212270

約数の個数: 20

約数和(自身を含む): 131591280

約数和(自身を除く): 67069408

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 212243, 424486, 848972, 1697944, 3395888, 4032617, 8065234, 16130468, 32260936, 64521872]

約数ペア:

[(1, 64521872), (2, 32260936), (4, 16130468), (8, 8065234), (16, 4032617), (19, 3395888), (38, 1697944), (76, 848972), (152, 424486), (304, 212243)]