395740

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{421}}^1$

素因数の和:477

約数の個数: 24

約数和(自身を含む): 850752

約数和(自身を除く): 455012

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 421, 470, 842, 940, 1684, 2105, 4210, 8420, 19787, 39574, 79148, 98935, 197870, 395740]

約数ペア:

[(1, 395740), (2, 197870), (4, 98935), (5, 79148), (10, 39574), (20, 19787), (47, 8420), (94, 4210), (188, 2105), (235, 1684), (421, 940), (470, 842)]