80774960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{144241}}^1$

素因数の和:144261

約数の個数: 40

約数和(自身を含む): 214632096

約数和(自身を除く): 133857136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 144241, 288482, 576964, 721205, 1009687, 1153928, 1442410, 2019374, 2307856, 2884820, 4038748, 5048435, 5769640, 8077496, 10096870, 11539280, 16154992, 20193740, 40387480, 80774960]

約数ペア:

[(1, 80774960), (2, 40387480), (4, 20193740), (5, 16154992), (7, 11539280), (8, 10096870), (10, 8077496), (14, 5769640), (16, 5048435), (20, 4038748), (28, 2884820), (35, 2307856), (40, 2019374), (56, 1442410), (70, 1153928), (80, 1009687), (112, 721205), (140, 576964), (280, 288482), (560, 144241)]