20663600

素因数分解:

$2^4\times 5^2\times {\mathrm{51659}}^1$

素因数の和:51677

約数の個数: 30

約数和(自身を含む): 49645260

約数和(自身を除く): 28981660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 51659, 103318, 206636, 258295, 413272, 516590, 826544, 1033180, 1291475, 2066360, 2582950, 4132720, 5165900, 10331800, 20663600]

約数ペア:

[(1, 20663600), (2, 10331800), (4, 5165900), (5, 4132720), (8, 2582950), (10, 2066360), (16, 1291475), (20, 1033180), (25, 826544), (40, 516590), (50, 413272), (80, 258295), (100, 206636), (200, 103318), (400, 51659)]