4243420

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{641}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 8952048

約数和(自身を除く): 4708628

約数列:

[1, 2, 4, 5, 10, 20, 331, 641, 662, 1282, 1324, 1655, 2564, 3205, 3310, 6410, 6620, 12820, 212171, 424342, 848684, 1060855, 2121710, 4243420]

約数ペア:

[(1, 4243420), (2, 2121710), (4, 1060855), (5, 848684), (10, 424342), (20, 212171), (331, 12820), (641, 6620), (662, 6410), (1282, 3310), (1324, 3205), (1655, 2564)]