20496575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1021}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 28133616

約数和(自身を除く): 7637041

約数列:

[1, 5, 11, 25, 55, 73, 275, 365, 803, 1021, 1825, 4015, 5105, 11231, 20075, 25525, 56155, 74533, 280775, 372665, 819863, 1863325, 4099315, 20496575]

約数ペア:

[(1, 20496575), (5, 4099315), (11, 1863325), (25, 819863), (55, 372665), (73, 280775), (275, 74533), (365, 56155), (803, 25525), (1021, 20075), (1825, 11231), (4015, 5105)]