64621480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{20981}}^1$

素因数の和:21010

約数の個数: 64

約数和(自身を含む): 181284480

約数和(自身を除く): 116663000

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 20981, 41962, 83924, 104905, 146867, 167848, 209810, 230791, 293734, 419620, 461582, 587468, 734335, 839240, 923164, 1153955, 1174936, 1468670, 1615537, 1846328, 2307910, 2937340, 3231074, 4615820, 5874680, 6462148, 8077685, 9231640, 12924296, 16155370, 32310740, 64621480]

約数ペア:

[(1, 64621480), (2, 32310740), (4, 16155370), (5, 12924296), (7, 9231640), (8, 8077685), (10, 6462148), (11, 5874680), (14, 4615820), (20, 3231074), (22, 2937340), (28, 2307910), (35, 1846328), (40, 1615537), (44, 1468670), (55, 1174936), (56, 1153955), (70, 923164), (77, 839240), (88, 734335), (110, 587468), (140, 461582), (154, 419620), (220, 293734), (280, 230791), (308, 209810), (385, 167848), (440, 146867), (616, 104905), (770, 83924), (1540, 41962), (3080, 20981)]