258584440

素因数分解:

$2^3\times 5^1\times {\mathrm{6464611}}^1$

素因数の和:6464622

約数の個数: 16

約数和(自身を含む): 581815080

約数和(自身を除く): 323230640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 6464611, 12929222, 25858444, 32323055, 51716888, 64646110, 129292220, 258584440]

約数ペア:

[(1, 258584440), (2, 129292220), (4, 64646110), (5, 51716888), (8, 32323055), (10, 25858444), (20, 12929222), (40, 6464611)]