20570080

素因数分解:

$2^5\times 5^1\times {\mathrm{128563}}^1$

素因数の和:128578

約数の個数: 24

約数和(自身を含む): 48597192

約数和(自身を除く): 28027112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 128563, 257126, 514252, 642815, 1028504, 1285630, 2057008, 2571260, 4114016, 5142520, 10285040, 20570080]

約数ペア:

[(1, 20570080), (2, 10285040), (4, 5142520), (5, 4114016), (8, 2571260), (10, 2057008), (16, 1285630), (20, 1028504), (32, 642815), (40, 514252), (80, 257126), (160, 128563)]