20550520

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{16573}}^1$

素因数の和:16615

約数の個数: 32

約数和(自身を含む): 47733120

約数和(自身を除く): 27182600

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 16573, 33146, 66292, 82865, 132584, 165730, 331460, 513763, 662920, 1027526, 2055052, 2568815, 4110104, 5137630, 10275260, 20550520]

約数ペア:

[(1, 20550520), (2, 10275260), (4, 5137630), (5, 4110104), (8, 2568815), (10, 2055052), (20, 1027526), (31, 662920), (40, 513763), (62, 331460), (124, 165730), (155, 132584), (248, 82865), (310, 66292), (620, 33146), (1240, 16573)]