67664840

素因数分解:

$2^3\times 5^1\times {\mathrm{1691621}}^1$

素因数の和:1691632

約数の個数: 16

約数和(自身を含む): 152245980

約数和(自身を除く): 84581140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1691621, 3383242, 6766484, 8458105, 13532968, 16916210, 33832420, 67664840]

約数ペア:

[(1, 67664840), (2, 33832420), (4, 16916210), (5, 13532968), (8, 8458105), (10, 6766484), (20, 3383242), (40, 1691621)]