12902440

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{6863}}^1$

素因数の和:6921

約数の個数: 32

約数和(自身を含む): 29652480

約数和(自身を除く): 16750040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 6863, 13726, 27452, 34315, 54904, 68630, 137260, 274520, 322561, 645122, 1290244, 1612805, 2580488, 3225610, 6451220, 12902440]

約数ペア:

[(1, 12902440), (2, 6451220), (4, 3225610), (5, 2580488), (8, 1612805), (10, 1290244), (20, 645122), (40, 322561), (47, 274520), (94, 137260), (188, 68630), (235, 54904), (376, 34315), (470, 27452), (940, 13726), (1880, 6863)]