20512759664

素因数分解:

$2^4\times {\mathrm{67}}^1\times {\mathrm{643}}^1\times {\mathrm{29759}}^1$

素因数の和:30477

約数の個数: 40

約数和(自身を含む): 40400747520

約数和(自身を除く): 19887987856

約数列:

[1, 2, 4, 8, 16, 67, 134, 268, 536, 643, 1072, 1286, 2572, 5144, 10288, 29759, 43081, 59518, 86162, 119036, 172324, 238072, 344648, 476144, 689296, 1993853, 3987706, 7975412, 15950824, 19135037, 31901648, 38270074, 76540148, 153080296, 306160592, 1282047479, 2564094958, 5128189916, 10256379832, 20512759664]

約数ペア:

[(1, 20512759664), (2, 10256379832), (4, 5128189916), (8, 2564094958), (16, 1282047479), (67, 306160592), (134, 153080296), (268, 76540148), (536, 38270074), (643, 31901648), (1072, 19135037), (1286, 15950824), (2572, 7975412), (5144, 3987706), (10288, 1993853), (29759, 689296), (43081, 476144), (59518, 344648), (86162, 238072), (119036, 172324)]