6428020

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{971}}^1$

素因数の和:1311

約数の個数: 24

約数和(自身を含む): 13553568

約数和(自身を除く): 7125548

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 971, 1324, 1655, 1942, 3310, 3884, 4855, 6620, 9710, 19420, 321401, 642802, 1285604, 1607005, 3214010, 6428020]

約数ペア:

[(1, 6428020), (2, 3214010), (4, 1607005), (5, 1285604), (10, 642802), (20, 321401), (331, 19420), (662, 9710), (971, 6620), (1324, 4855), (1655, 3884), (1942, 3310)]