28730860

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{20233}}^1$

素因数の和:20313

約数の個数: 24

約数和(自身を含む): 61187616

約数和(自身を除く): 32456756

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 20233, 40466, 80932, 101165, 202330, 404660, 1436543, 2873086, 5746172, 7182715, 14365430, 28730860]

約数ペア:

[(1, 28730860), (2, 14365430), (4, 7182715), (5, 5746172), (10, 2873086), (20, 1436543), (71, 404660), (142, 202330), (284, 101165), (355, 80932), (710, 40466), (1420, 20233)]