155120620

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{181}}^1\times {\mathrm{587}}^1$

素因数の和:850

約数の個数: 48

約数和(自身を含む): 332605728

約数和(自身を除く): 177485108

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 181, 292, 362, 365, 587, 724, 730, 905, 1174, 1460, 1810, 2348, 2935, 3620, 5870, 11740, 13213, 26426, 42851, 52852, 66065, 85702, 106247, 132130, 171404, 212494, 214255, 264260, 424988, 428510, 531235, 857020, 1062470, 2124940, 7756031, 15512062, 31024124, 38780155, 77560310, 155120620]

約数ペア:

[(1, 155120620), (2, 77560310), (4, 38780155), (5, 31024124), (10, 15512062), (20, 7756031), (73, 2124940), (146, 1062470), (181, 857020), (292, 531235), (362, 428510), (365, 424988), (587, 264260), (724, 214255), (730, 212494), (905, 171404), (1174, 132130), (1460, 106247), (1810, 85702), (2348, 66065), (2935, 52852), (3620, 42851), (5870, 26426), (11740, 13213)]