20247560

素因数分解:

$2^3\times 5^1\times {\mathrm{211}}^1\times {\mathrm{2399}}^1$

素因数の和:2621

約数の個数: 32

約数和(自身を含む): 45792000

約数和(自身を除く): 25544440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 211, 422, 844, 1055, 1688, 2110, 2399, 4220, 4798, 8440, 9596, 11995, 19192, 23990, 47980, 95960, 506189, 1012378, 2024756, 2530945, 4049512, 5061890, 10123780, 20247560]

約数ペア:

[(1, 20247560), (2, 10123780), (4, 5061890), (5, 4049512), (8, 2530945), (10, 2024756), (20, 1012378), (40, 506189), (211, 95960), (422, 47980), (844, 23990), (1055, 19192), (1688, 11995), (2110, 9596), (2399, 8440), (4220, 4798)]