20243560

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{1301}}^1$

素因数の和:1701

約数の個数: 32

約数和(自身を含む): 45700200

約数和(自身を除く): 25456640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1301, 1556, 1945, 2602, 3112, 3890, 5204, 6505, 7780, 10408, 13010, 15560, 26020, 52040, 506089, 1012178, 2024356, 2530445, 4048712, 5060890, 10121780, 20243560]

約数ペア:

[(1, 20243560), (2, 10121780), (4, 5060890), (5, 4048712), (8, 2530445), (10, 2024356), (20, 1012178), (40, 506089), (389, 52040), (778, 26020), (1301, 15560), (1556, 13010), (1945, 10408), (2602, 7780), (3112, 6505), (3890, 5204)]