28291600

素因数分解:

$2^4\times 5^2\times {\mathrm{70729}}^1$

素因数の和:70747

約数の個数: 30

約数和(自身を含む): 67971530

約数和(自身を除く): 39679930

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 70729, 141458, 282916, 353645, 565832, 707290, 1131664, 1414580, 1768225, 2829160, 3536450, 5658320, 7072900, 14145800, 28291600]

約数ペア:

[(1, 28291600), (2, 14145800), (4, 7072900), (5, 5658320), (8, 3536450), (10, 2829160), (16, 1768225), (20, 1414580), (25, 1131664), (40, 707290), (50, 565832), (80, 353645), (100, 282916), (200, 141458), (400, 70729)]