20145011990

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{4588841}}^1$

素因数の和:4589287

約数の個数: 16

約数和(自身を含む): 36343628640

約数和(自身を除く): 16198616650

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 4588841, 9177682, 22944205, 45888410, 2014501199, 4029002398, 10072505995, 20145011990]

約数ペア:

[(1, 20145011990), (2, 10072505995), (5, 4029002398), (10, 2014501199), (439, 45888410), (878, 22944205), (2195, 9177682), (4390, 4588841)]