393860

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{419}}^1$

素因数の和:475

約数の個数: 24

約数和(自身を含む): 846720

約数和(自身を除く): 452860

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 419, 470, 838, 940, 1676, 2095, 4190, 8380, 19693, 39386, 78772, 98465, 196930, 393860]

約数ペア:

[(1, 393860), (2, 196930), (4, 98465), (5, 78772), (10, 39386), (20, 19693), (47, 8380), (94, 4190), (188, 2095), (235, 1676), (419, 940), (470, 838)]