814420

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{947}}^1$

素因数の和:999

約数の個数: 24

約数和(自身を含む): 1751904

約数和(自身を除く): 937484

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 947, 1894, 3788, 4735, 9470, 18940, 40721, 81442, 162884, 203605, 407210, 814420]

約数ペア:

[(1, 814420), (2, 407210), (4, 203605), (5, 162884), (10, 81442), (20, 40721), (43, 18940), (86, 9470), (172, 4735), (215, 3788), (430, 1894), (860, 947)]