28274020

素因数分解:

$2^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{4271}}^1$

素因数の和:4611

約数の個数: 24

約数和(自身を含む): 59568768

約数和(自身を除く): 31294748

約数列:

[1, 2, 4, 5, 10, 20, 331, 662, 1324, 1655, 3310, 4271, 6620, 8542, 17084, 21355, 42710, 85420, 1413701, 2827402, 5654804, 7068505, 14137010, 28274020]

約数ペア:

[(1, 28274020), (2, 14137010), (4, 7068505), (5, 5654804), (10, 2827402), (20, 1413701), (331, 85420), (662, 42710), (1324, 21355), (1655, 17084), (3310, 8542), (4271, 6620)]