20415745

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^2\times {\mathrm{347}}^1$

素因数の和:441

約数の個数: 24

約数和(自身を含む): 28780992

約数和(自身を除く): 8365247

約数列:

[1, 5, 7, 35, 41, 205, 287, 347, 1435, 1681, 1735, 2429, 8405, 11767, 12145, 14227, 58835, 71135, 99589, 497945, 583307, 2916535, 4083149, 20415745]

約数ペア:

[(1, 20415745), (5, 4083149), (7, 2916535), (35, 583307), (41, 497945), (205, 99589), (287, 71135), (347, 58835), (1435, 14227), (1681, 12145), (1735, 11767), (2429, 8405)]