200720511

素因数分解:

$3^4\times {\mathrm{449}}^1\times {\mathrm{5519}}^1$

素因数の和:5980

約数の個数: 20

約数和(自身を含む): 300564000

約数和(自身を除く): 99843489

約数列:

[1, 3, 9, 27, 81, 449, 1347, 4041, 5519, 12123, 16557, 36369, 49671, 149013, 447039, 2478031, 7434093, 22302279, 66906837, 200720511]

約数ペア:

[(1, 200720511), (3, 66906837), (9, 22302279), (27, 7434093), (81, 2478031), (449, 447039), (1347, 149013), (4041, 49671), (5519, 36369), (12123, 16557)]