990959960

素因数分解:

$2^3\times 5^1\times {\mathrm{24773999}}^1$

素因数の和:24774010

約数の個数: 16

約数和(自身を含む): 2229660000

約数和(自身を除く): 1238700040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 24773999, 49547998, 99095996, 123869995, 198191992, 247739990, 495479980, 990959960]

約数ペア:

[(1, 990959960), (2, 495479980), (4, 247739990), (5, 198191992), (8, 123869995), (10, 99095996), (20, 49547998), (40, 24773999)]