71911480

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{41809}}^1$

素因数の和:41863

約数の個数: 32

約数和(自身を含む): 165567600

約数和(自身を除く): 93656120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 41809, 83618, 167236, 209045, 334472, 418090, 836180, 1672360, 1797787, 3595574, 7191148, 8988935, 14382296, 17977870, 35955740, 71911480]

約数ペア:

[(1, 71911480), (2, 35955740), (4, 17977870), (5, 14382296), (8, 8988935), (10, 7191148), (20, 3595574), (40, 1797787), (43, 1672360), (86, 836180), (172, 418090), (215, 334472), (344, 209045), (430, 167236), (860, 83618), (1720, 41809)]