2019455440

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{587051}}^1$

素因数の和:587107

約数の個数: 40

約数和(自身を含む): 4804433568

約数和(自身を除く): 2784978128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 587051, 1174102, 2348204, 2935255, 4696408, 5870510, 9392816, 11741020, 23482040, 25243193, 46964080, 50486386, 100972772, 126215965, 201945544, 252431930, 403891088, 504863860, 1009727720, 2019455440]

約数ペア:

[(1, 2019455440), (2, 1009727720), (4, 504863860), (5, 403891088), (8, 252431930), (10, 201945544), (16, 126215965), (20, 100972772), (40, 50486386), (43, 46964080), (80, 25243193), (86, 23482040), (172, 11741020), (215, 9392816), (344, 5870510), (430, 4696408), (688, 2935255), (860, 2348204), (1720, 1174102), (3440, 587051)]