19967600

素因数分解:

$2^4\times 5^2\times {\mathrm{49919}}^1$

素因数の和:49937

約数の個数: 30

約数和(自身を含む): 47973120

約数和(自身を除く): 28005520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49919, 99838, 199676, 249595, 399352, 499190, 798704, 998380, 1247975, 1996760, 2495950, 3993520, 4991900, 9983800, 19967600]

約数ペア:

[(1, 19967600), (2, 9983800), (4, 4991900), (5, 3993520), (8, 2495950), (10, 1996760), (16, 1247975), (20, 998380), (25, 798704), (40, 499190), (50, 399352), (80, 249595), (100, 199676), (200, 99838), (400, 49919)]