12889280

素因数分解:

$2^6\times 5^1\times {\mathrm{47}}^1\times {\mathrm{857}}^1$

素因数の和:921

約数の個数: 56

約数和(自身を含む): 31382208

約数和(自身を除く): 18492928

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 160, 188, 235, 320, 376, 470, 752, 857, 940, 1504, 1714, 1880, 3008, 3428, 3760, 4285, 6856, 7520, 8570, 13712, 15040, 17140, 27424, 34280, 40279, 54848, 68560, 80558, 137120, 161116, 201395, 274240, 322232, 402790, 644464, 805580, 1288928, 1611160, 2577856, 3222320, 6444640, 12889280]

約数ペア:

[(1, 12889280), (2, 6444640), (4, 3222320), (5, 2577856), (8, 1611160), (10, 1288928), (16, 805580), (20, 644464), (32, 402790), (40, 322232), (47, 274240), (64, 201395), (80, 161116), (94, 137120), (160, 80558), (188, 68560), (235, 54848), (320, 40279), (376, 34280), (470, 27424), (752, 17140), (857, 15040), (940, 13712), (1504, 8570), (1714, 7520), (1880, 6856), (3008, 4285), (3428, 3760)]