2157850

素因数分解:

$2^1\times 5^2\times {\mathrm{103}}^1\times {\mathrm{419}}^1$

素因数の和:534

約数の個数: 24

約数和(自身を含む): 4062240

約数和(自身を除く): 1904390

約数列:

[1, 2, 5, 10, 25, 50, 103, 206, 419, 515, 838, 1030, 2095, 2575, 4190, 5150, 10475, 20950, 43157, 86314, 215785, 431570, 1078925, 2157850]

約数ペア:

[(1, 2157850), (2, 1078925), (5, 431570), (10, 215785), (25, 86314), (50, 43157), (103, 20950), (206, 10475), (419, 5150), (515, 4190), (838, 2575), (1030, 2095)]