18996870520

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1714519}}^1$

素因数の和:1714807

約数の個数: 32

約数和(自身を含む): 42897290400

約数和(自身を除く): 23900419880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 1714519, 3429038, 6858076, 8572595, 13716152, 17145190, 34290380, 68580760, 474921763, 949843526, 1899687052, 2374608815, 3799374104, 4749217630, 9498435260, 18996870520]

約数ペア:

[(1, 18996870520), (2, 9498435260), (4, 4749217630), (5, 3799374104), (8, 2374608815), (10, 1899687052), (20, 949843526), (40, 474921763), (277, 68580760), (554, 34290380), (1108, 17145190), (1385, 13716152), (2216, 8572595), (2770, 6858076), (5540, 3429038), (11080, 1714519)]