80830520

素因数分解:

$2^3\times 5^1\times {\mathrm{1063}}^1\times {\mathrm{1901}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 182135520

約数和(自身を除く): 101305000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1063, 1901, 2126, 3802, 4252, 5315, 7604, 8504, 9505, 10630, 15208, 19010, 21260, 38020, 42520, 76040, 2020763, 4041526, 8083052, 10103815, 16166104, 20207630, 40415260, 80830520]

約数ペア:

[(1, 80830520), (2, 40415260), (4, 20207630), (5, 16166104), (8, 10103815), (10, 8083052), (20, 4041526), (40, 2020763), (1063, 76040), (1901, 42520), (2126, 38020), (3802, 21260), (4252, 19010), (5315, 15208), (7604, 10630), (8504, 9505)]