2538220

素因数分解:

$2^2\times 5^1\times {\mathrm{179}}^1\times {\mathrm{709}}^1$

素因数の和:897

約数の個数: 24

約数和(自身を含む): 5367600

約数和(自身を除く): 2829380

約数列:

[1, 2, 4, 5, 10, 20, 179, 358, 709, 716, 895, 1418, 1790, 2836, 3545, 3580, 7090, 14180, 126911, 253822, 507644, 634555, 1269110, 2538220]

約数ペア:

[(1, 2538220), (2, 1269110), (4, 634555), (5, 507644), (10, 253822), (20, 126911), (179, 14180), (358, 7090), (709, 3580), (716, 3545), (895, 2836), (1418, 1790)]