71217680

素因数分解:

$2^4\times 5^1\times {\mathrm{890221}}^1$

素因数の和:890234

約数の個数: 20

約数和(自身を含む): 165581292

約数和(自身を除く): 94363612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 890221, 1780442, 3560884, 4451105, 7121768, 8902210, 14243536, 17804420, 35608840, 71217680]

約数ペア:

[(1, 71217680), (2, 35608840), (4, 17804420), (5, 14243536), (8, 8902210), (10, 7121768), (16, 4451105), (20, 3560884), (40, 1780442), (80, 890221)]