82681480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{295291}}^1$

素因数の和:295309

約数の個数: 32

約数和(自身を含む): 212610240

約数和(自身を除く): 129928760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 295291, 590582, 1181164, 1476455, 2067037, 2362328, 2952910, 4134074, 5905820, 8268148, 10335185, 11811640, 16536296, 20670370, 41340740, 82681480]

約数ペア:

[(1, 82681480), (2, 41340740), (4, 20670370), (5, 16536296), (7, 11811640), (8, 10335185), (10, 8268148), (14, 5905820), (20, 4134074), (28, 2952910), (35, 2362328), (40, 2067037), (56, 1476455), (70, 1181164), (140, 590582), (280, 295291)]