2801650

素因数分解:

$2^1\times 5^2\times {\mathrm{137}}^1\times {\mathrm{409}}^1$

素因数の和:558

約数の個数: 24

約数和(自身を含む): 5261940

約数和(自身を除く): 2460290

約数列:

[1, 2, 5, 10, 25, 50, 137, 274, 409, 685, 818, 1370, 2045, 3425, 4090, 6850, 10225, 20450, 56033, 112066, 280165, 560330, 1400825, 2801650]

約数ペア:

[(1, 2801650), (2, 1400825), (5, 560330), (10, 280165), (25, 112066), (50, 56033), (137, 20450), (274, 10225), (409, 6850), (685, 4090), (818, 3425), (1370, 2045)]