65486020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{79861}}^1$

素因数の和:79911

約数の個数: 24

約数和(自身を含む): 140876568

約数和(自身を除く): 75390548

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 79861, 159722, 319444, 399305, 798610, 1597220, 3274301, 6548602, 13097204, 16371505, 32743010, 65486020]

約数ペア:

[(1, 65486020), (2, 32743010), (4, 16371505), (5, 13097204), (10, 6548602), (20, 3274301), (41, 1597220), (82, 798610), (164, 399305), (205, 319444), (410, 159722), (820, 79861)]