15400420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2683}}^1$

素因数の和:2740

約数の個数: 48

約数和(自身を含む): 37876608

約数和(自身を除く): 22476188

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2683, 2870, 5366, 5740, 10732, 13415, 18781, 26830, 37562, 53660, 75124, 93905, 110003, 187810, 220006, 375620, 440012, 550015, 770021, 1100030, 1540042, 2200060, 3080084, 3850105, 7700210, 15400420]

約数ペア:

[(1, 15400420), (2, 7700210), (4, 3850105), (5, 3080084), (7, 2200060), (10, 1540042), (14, 1100030), (20, 770021), (28, 550015), (35, 440012), (41, 375620), (70, 220006), (82, 187810), (140, 110003), (164, 93905), (205, 75124), (287, 53660), (410, 37562), (574, 26830), (820, 18781), (1148, 13415), (1435, 10732), (2683, 5740), (2870, 5366)]