9990680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1151}}^1$

素因数の和:1200

約数の個数: 64

約数和(自身を含む): 26542080

約数和(自身を除く): 16551400

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 70, 124, 140, 155, 217, 248, 280, 310, 434, 620, 868, 1085, 1151, 1240, 1736, 2170, 2302, 4340, 4604, 5755, 8057, 8680, 9208, 11510, 16114, 23020, 32228, 35681, 40285, 46040, 64456, 71362, 80570, 142724, 161140, 178405, 249767, 285448, 322280, 356810, 499534, 713620, 999068, 1248835, 1427240, 1998136, 2497670, 4995340, 9990680]

約数ペア:

[(1, 9990680), (2, 4995340), (4, 2497670), (5, 1998136), (7, 1427240), (8, 1248835), (10, 999068), (14, 713620), (20, 499534), (28, 356810), (31, 322280), (35, 285448), (40, 249767), (56, 178405), (62, 161140), (70, 142724), (124, 80570), (140, 71362), (155, 64456), (217, 46040), (248, 40285), (280, 35681), (310, 32228), (434, 23020), (620, 16114), (868, 11510), (1085, 9208), (1151, 8680), (1240, 8057), (1736, 5755), (2170, 4604), (2302, 4340)]