20784122080

素因数分解:

$2^5\times 5^1\times {\mathrm{129900763}}^1$

素因数の和:129900778

約数の個数: 24

約数和(自身を含む): 49102488792

約数和(自身を除く): 28318366712

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 129900763, 259801526, 519603052, 649503815, 1039206104, 1299007630, 2078412208, 2598015260, 4156824416, 5196030520, 10392061040, 20784122080]

約数ペア:

[(1, 20784122080), (2, 10392061040), (4, 5196030520), (5, 4156824416), (8, 2598015260), (10, 2078412208), (16, 1299007630), (20, 1039206104), (32, 649503815), (40, 519603052), (80, 259801526), (160, 129900763)]