20199805040

素因数分解:

$2^4\times 5^1\times {\mathrm{252497563}}^1$

素因数の和:252497576

約数の個数: 20

約数和(自身を含む): 46964546904

約数和(自身を除く): 26764741864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 252497563, 504995126, 1009990252, 1262487815, 2019980504, 2524975630, 4039961008, 5049951260, 10099902520, 20199805040]

約数ペア:

[(1, 20199805040), (2, 10099902520), (4, 5049951260), (5, 4039961008), (8, 2524975630), (10, 2019980504), (16, 1262487815), (20, 1009990252), (40, 504995126), (80, 252497563)]