335380

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{409}}^1$

素因数の和:459

約数の個数: 24

約数和(自身を含む): 723240

約数和(自身を除く): 387860

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 409, 410, 818, 820, 1636, 2045, 4090, 8180, 16769, 33538, 67076, 83845, 167690, 335380]

約数ペア:

[(1, 335380), (2, 167690), (4, 83845), (5, 67076), (10, 33538), (20, 16769), (41, 8180), (82, 4090), (164, 2045), (205, 1636), (409, 820), (410, 818)]