20336740

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1543}}^1$

素因数の和:2211

約数の個数: 24

約数和(自身を含む): 42799680

約数和(自身を除く): 22462940

約数列:

[1, 2, 4, 5, 10, 20, 659, 1318, 1543, 2636, 3086, 3295, 6172, 6590, 7715, 13180, 15430, 30860, 1016837, 2033674, 4067348, 5084185, 10168370, 20336740]

約数ペア:

[(1, 20336740), (2, 10168370), (4, 5084185), (5, 4067348), (10, 2033674), (20, 1016837), (659, 30860), (1318, 15430), (1543, 13180), (2636, 7715), (3086, 6590), (3295, 6172)]