80285240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{286733}}^1$

素因数の和:286751

約数の個数: 32

約数和(自身を含む): 206448480

約数和(自身を除く): 126163240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 286733, 573466, 1146932, 1433665, 2007131, 2293864, 2867330, 4014262, 5734660, 8028524, 10035655, 11469320, 16057048, 20071310, 40142620, 80285240]

約数ペア:

[(1, 80285240), (2, 40142620), (4, 20071310), (5, 16057048), (7, 11469320), (8, 10035655), (10, 8028524), (14, 5734660), (20, 4014262), (28, 2867330), (35, 2293864), (40, 2007131), (56, 1433665), (70, 1146932), (140, 573466), (280, 286733)]