20436890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{503}}^1$

素因数の和:766

約数の個数: 32

約数和(自身を含む): 39191040

約数和(自身を除く): 18754150

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 239, 478, 503, 1006, 1195, 2390, 2515, 4063, 5030, 8126, 8551, 17102, 20315, 40630, 42755, 85510, 120217, 240434, 601085, 1202170, 2043689, 4087378, 10218445, 20436890]

約数ペア:

[(1, 20436890), (2, 10218445), (5, 4087378), (10, 2043689), (17, 1202170), (34, 601085), (85, 240434), (170, 120217), (239, 85510), (478, 42755), (503, 40630), (1006, 20315), (1195, 17102), (2390, 8551), (2515, 8126), (4063, 5030)]