8409820

素因数分解:

$2^2\times 5^1\times {\mathrm{569}}^1\times {\mathrm{739}}^1$

素因数の和:1317

約数の個数: 24

約数和(自身を含む): 17715600

約数和(自身を除く): 9305780

約数列:

[1, 2, 4, 5, 10, 20, 569, 739, 1138, 1478, 2276, 2845, 2956, 3695, 5690, 7390, 11380, 14780, 420491, 840982, 1681964, 2102455, 4204910, 8409820]

約数ペア:

[(1, 8409820), (2, 4204910), (4, 2102455), (5, 1681964), (10, 840982), (20, 420491), (569, 14780), (739, 11380), (1138, 7390), (1478, 5690), (2276, 3695), (2845, 2956)]