19759804720

素因数分解:

$2^4\times 5^1\times {\mathrm{246997559}}^1$

素因数の和:246997572

約数の個数: 20

約数和(自身を含む): 45941546160

約数和(自身を除く): 26181741440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 246997559, 493995118, 987990236, 1234987795, 1975980472, 2469975590, 3951960944, 4939951180, 9879902360, 19759804720]

約数ペア:

[(1, 19759804720), (2, 9879902360), (4, 4939951180), (5, 3951960944), (8, 2469975590), (10, 1975980472), (16, 1234987795), (20, 987990236), (40, 493995118), (80, 246997559)]