20730520

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{27277}}^1$

素因数の和:27307

約数の個数: 32

約数和(自身を含む): 49100400

約数和(自身を除く): 28369880

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 27277, 54554, 109108, 136385, 218216, 272770, 518263, 545540, 1036526, 1091080, 2073052, 2591315, 4146104, 5182630, 10365260, 20730520]

約数ペア:

[(1, 20730520), (2, 10365260), (4, 5182630), (5, 4146104), (8, 2591315), (10, 2073052), (19, 1091080), (20, 1036526), (38, 545540), (40, 518263), (76, 272770), (95, 218216), (152, 136385), (190, 109108), (380, 54554), (760, 27277)]