72657680

素因数分解:

$2^4\times 5^1\times {\mathrm{908221}}^1$

素因数の和:908234

約数の個数: 20

約数和(自身を含む): 168929292

約数和(自身を除く): 96271612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 908221, 1816442, 3632884, 4541105, 7265768, 9082210, 14531536, 18164420, 36328840, 72657680]

約数ペア:

[(1, 72657680), (2, 36328840), (4, 18164420), (5, 14531536), (8, 9082210), (10, 7265768), (16, 4541105), (20, 3632884), (40, 1816442), (80, 908221)]