72841880

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1489}}^1$

素因数の和:2723

約数の個数: 32

約数和(自身を含む): 164138400

約数和(自身を除く): 91296520

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 1489, 2446, 2978, 4892, 5956, 6115, 7445, 9784, 11912, 12230, 14890, 24460, 29780, 48920, 59560, 1821047, 3642094, 7284188, 9105235, 14568376, 18210470, 36420940, 72841880]

約数ペア:

[(1, 72841880), (2, 36420940), (4, 18210470), (5, 14568376), (8, 9105235), (10, 7284188), (20, 3642094), (40, 1821047), (1223, 59560), (1489, 48920), (2446, 29780), (2978, 24460), (4892, 14890), (5956, 12230), (6115, 11912), (7445, 9784)]