28721640

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239347}}^1$

素因数の和:239361

約数の個数: 32

約数和(自身を含む): 86165280

約数和(自身を除く): 57443640

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239347, 478694, 718041, 957388, 1196735, 1436082, 1914776, 2393470, 2872164, 3590205, 4786940, 5744328, 7180410, 9573880, 14360820, 28721640]

約数ペア:

[(1, 28721640), (2, 14360820), (3, 9573880), (4, 7180410), (5, 5744328), (6, 4786940), (8, 3590205), (10, 2872164), (12, 2393470), (15, 1914776), (20, 1436082), (24, 1196735), (30, 957388), (40, 718041), (60, 478694), (120, 239347)]