20179240

素因数分解:

$2^3\times 5^1\times {\mathrm{131}}^1\times {\mathrm{3851}}^1$

素因数の和:3993

約数の個数: 32

約数和(自身を含む): 45761760

約数和(自身を除く): 25582520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 131, 262, 524, 655, 1048, 1310, 2620, 3851, 5240, 7702, 15404, 19255, 30808, 38510, 77020, 154040, 504481, 1008962, 2017924, 2522405, 4035848, 5044810, 10089620, 20179240]

約数ペア:

[(1, 20179240), (2, 10089620), (4, 5044810), (5, 4035848), (8, 2522405), (10, 2017924), (20, 1008962), (40, 504481), (131, 154040), (262, 77020), (524, 38510), (655, 30808), (1048, 19255), (1310, 15404), (2620, 7702), (3851, 5240)]