20524880

素因数分解:

$2^4\times 5^1\times {\mathrm{256561}}^1$

素因数の和:256574

約数の個数: 20

約数和(自身を含む): 47720532

約数和(自身を除く): 27195652

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256561, 513122, 1026244, 1282805, 2052488, 2565610, 4104976, 5131220, 10262440, 20524880]

約数ペア:

[(1, 20524880), (2, 10262440), (4, 5131220), (5, 4104976), (8, 2565610), (10, 2052488), (16, 1282805), (20, 1026244), (40, 513122), (80, 256561)]