28721820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{478697}}^1$

素因数の和:478709

約数の個数: 24

約数和(自身を含む): 80421264

約数和(自身を除く): 51699444

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 478697, 957394, 1436091, 1914788, 2393485, 2872182, 4786970, 5744364, 7180455, 9573940, 14360910, 28721820]

約数ペア:

[(1, 28721820), (2, 14360910), (3, 9573940), (4, 7180455), (5, 5744364), (6, 4786970), (10, 2872182), (12, 2393485), (15, 1914788), (20, 1436091), (30, 957394), (60, 478697)]