2004016720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{582563}}^1$

素因数の和:582619

約数の個数: 40

約数和(自身を含む): 4767703776

約数和(自身を除く): 2763687056

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 582563, 1165126, 2330252, 2912815, 4660504, 5825630, 9321008, 11651260, 23302520, 25050209, 46605040, 50100418, 100200836, 125251045, 200401672, 250502090, 400803344, 501004180, 1002008360, 2004016720]

約数ペア:

[(1, 2004016720), (2, 1002008360), (4, 501004180), (5, 400803344), (8, 250502090), (10, 200401672), (16, 125251045), (20, 100200836), (40, 50100418), (43, 46605040), (80, 25050209), (86, 23302520), (172, 11651260), (215, 9321008), (344, 5825630), (430, 4660504), (688, 2912815), (860, 2330252), (1720, 1165126), (3440, 582563)]