20338460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{1459}}^1$

素因数の和:1526

約数の個数: 48

約数和(自身を含む): 46357920

約数和(自身を除く): 26019460

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 41, 68, 82, 85, 164, 170, 205, 340, 410, 697, 820, 1394, 1459, 2788, 2918, 3485, 5836, 6970, 7295, 13940, 14590, 24803, 29180, 49606, 59819, 99212, 119638, 124015, 239276, 248030, 299095, 496060, 598190, 1016923, 1196380, 2033846, 4067692, 5084615, 10169230, 20338460]

約数ペア:

[(1, 20338460), (2, 10169230), (4, 5084615), (5, 4067692), (10, 2033846), (17, 1196380), (20, 1016923), (34, 598190), (41, 496060), (68, 299095), (82, 248030), (85, 239276), (164, 124015), (170, 119638), (205, 99212), (340, 59819), (410, 49606), (697, 29180), (820, 24803), (1394, 14590), (1459, 13940), (2788, 7295), (2918, 6970), (3485, 5836)]