389997.0000000

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{14051}}^1$

素因数の和:14091

約数の個数: 24

約数和(自身を含む): 18885888

約数和(自身を除く): 10174268

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 14051, 28102, 56204, 70255, 140510, 281020, 435581, 871162, 1742324, 2177905, 4355810, 8711620]

約数ペア:

[(1, 8711620), (2, 4355810), (4, 2177905), (5, 1742324), (10, 871162), (20, 435581), (31, 281020), (62, 140510), (124, 70255), (155, 56204), (310, 28102), (620, 14051)]