199920465

素因数分解:

$3^2\times 5^1\times {\mathrm{1381}}^1\times {\mathrm{3217}}^1$

素因数の和:4609

約数の個数: 24

約数和(自身を含む): 346887528

約数和(自身を除く): 146967063

約数列:

[1, 3, 5, 9, 15, 45, 1381, 3217, 4143, 6905, 9651, 12429, 16085, 20715, 28953, 48255, 62145, 144765, 4442677, 13328031, 22213385, 39984093, 66640155, 199920465]

約数ペア:

[(1, 199920465), (3, 66640155), (5, 39984093), (9, 22213385), (15, 13328031), (45, 4442677), (1381, 144765), (3217, 62145), (4143, 48255), (6905, 28953), (9651, 20715), (12429, 16085)]