161018990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{10531}}^1$

素因数の和:10688

約数の個数: 32

約数和(自身を含む): 318487680

約数和(自身を除く): 157468690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1390, 1529, 3058, 7645, 10531, 15290, 21062, 52655, 105310, 115841, 231682, 579205, 1158410, 1463809, 2927618, 7319045, 14638090, 16101899, 32203798, 80509495, 161018990]

約数ペア:

[(1, 161018990), (2, 80509495), (5, 32203798), (10, 16101899), (11, 14638090), (22, 7319045), (55, 2927618), (110, 1463809), (139, 1158410), (278, 579205), (695, 231682), (1390, 115841), (1529, 105310), (3058, 52655), (7645, 21062), (10531, 15290)]