2017603960

素因数分解:

$2^3\times 5^1\times {\mathrm{4561}}^1\times {\mathrm{11059}}^1$

素因数の和:15631

約数の個数: 32

約数和(自身を含む): 4541014800

約数和(自身を除く): 2523410840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4561, 9122, 11059, 18244, 22118, 22805, 36488, 44236, 45610, 55295, 88472, 91220, 110590, 182440, 221180, 442360, 50440099, 100880198, 201760396, 252200495, 403520792, 504400990, 1008801980, 2017603960]

約数ペア:

[(1, 2017603960), (2, 1008801980), (4, 504400990), (5, 403520792), (8, 252200495), (10, 201760396), (20, 100880198), (40, 50440099), (4561, 442360), (9122, 221180), (11059, 182440), (18244, 110590), (22118, 91220), (22805, 88472), (36488, 55295), (44236, 45610)]