20001395600

素因数分解:

$2^4\times 5^2\times {\mathrm{1277}}^1\times {\mathrm{39157}}^1$

素因数の和:40452

約数の個数: 60

約数和(自身を含む): 48092210964

約数和(自身を除く): 28090815364

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 1277, 2554, 5108, 6385, 10216, 12770, 20432, 25540, 31925, 39157, 51080, 63850, 78314, 102160, 127700, 156628, 195785, 255400, 313256, 391570, 510800, 626512, 783140, 978925, 1566280, 1957850, 3132560, 3915700, 7831400, 15662800, 50003489, 100006978, 200013956, 250017445, 400027912, 500034890, 800055824, 1000069780, 1250087225, 2000139560, 2500174450, 4000279120, 5000348900, 10000697800, 20001395600]

約数ペア:

[(1, 20001395600), (2, 10000697800), (4, 5000348900), (5, 4000279120), (8, 2500174450), (10, 2000139560), (16, 1250087225), (20, 1000069780), (25, 800055824), (40, 500034890), (50, 400027912), (80, 250017445), (100, 200013956), (200, 100006978), (400, 50003489), (1277, 15662800), (2554, 7831400), (5108, 3915700), (6385, 3132560), (10216, 1957850), (12770, 1566280), (20432, 978925), (25540, 783140), (31925, 626512), (39157, 510800), (51080, 391570), (63850, 313256), (78314, 255400), (102160, 195785), (127700, 156628)]