81827480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{292241}}^1$

素因数の和:292259

約数の個数: 32

約数和(自身を含む): 210414240

約数和(自身を除く): 128586760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 292241, 584482, 1168964, 1461205, 2045687, 2337928, 2922410, 4091374, 5844820, 8182748, 10228435, 11689640, 16365496, 20456870, 40913740, 81827480]

約数ペア:

[(1, 81827480), (2, 40913740), (4, 20456870), (5, 16365496), (7, 11689640), (8, 10228435), (10, 8182748), (14, 5844820), (20, 4091374), (28, 2922410), (35, 2337928), (40, 2045687), (56, 1461205), (70, 1168964), (140, 584482), (280, 292241)]