71565640

素因数分解:

$2^3\times 5^1\times {\mathrm{461}}^1\times {\mathrm{3881}}^1$

素因数の和:4353

約数の個数: 32

約数和(自身を含む): 161413560

約数和(自身を除く): 89847920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 461, 922, 1844, 2305, 3688, 3881, 4610, 7762, 9220, 15524, 18440, 19405, 31048, 38810, 77620, 155240, 1789141, 3578282, 7156564, 8945705, 14313128, 17891410, 35782820, 71565640]

約数ペア:

[(1, 71565640), (2, 35782820), (4, 17891410), (5, 14313128), (8, 8945705), (10, 7156564), (20, 3578282), (40, 1789141), (461, 155240), (922, 77620), (1844, 38810), (2305, 31048), (3688, 19405), (3881, 18440), (4610, 15524), (7762, 9220)]