20560228

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{271}}^1\times {\mathrm{1459}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 38917760

約数和(自身を除く): 18357532

約数列:

[1, 2, 4, 13, 26, 52, 271, 542, 1084, 1459, 2918, 3523, 5836, 7046, 14092, 18967, 37934, 75868, 395389, 790778, 1581556, 5140057, 10280114, 20560228]

約数ペア:

[(1, 20560228), (2, 10280114), (4, 5140057), (13, 1581556), (26, 790778), (52, 395389), (271, 75868), (542, 37934), (1084, 18967), (1459, 14092), (2918, 7046), (3523, 5836)]