20004488

素因数分解:

$2^3\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1693}}^1$

素因数の和:1917

約数の個数: 32

約数和(自身を含む): 43095360

約数和(自身を除く): 23090872

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 211, 422, 844, 1477, 1688, 1693, 2954, 3386, 5908, 6772, 11816, 11851, 13544, 23702, 47404, 94808, 357223, 714446, 1428892, 2500561, 2857784, 5001122, 10002244, 20004488]

約数ペア:

[(1, 20004488), (2, 10002244), (4, 5001122), (7, 2857784), (8, 2500561), (14, 1428892), (28, 714446), (56, 357223), (211, 94808), (422, 47404), (844, 23702), (1477, 13544), (1688, 11851), (1693, 11816), (2954, 6772), (3386, 5908)]