80945260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{2647}}^1$

素因数の和:2806

約数の個数: 48

約数和(自身を含む): 186842880

約数和(自身を除く): 105897620

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 139, 220, 278, 556, 695, 1390, 1529, 2647, 2780, 3058, 5294, 6116, 7645, 10588, 13235, 15290, 26470, 29117, 30580, 52940, 58234, 116468, 145585, 291170, 367933, 582340, 735866, 1471732, 1839665, 3679330, 4047263, 7358660, 8094526, 16189052, 20236315, 40472630, 80945260]

約数ペア:

[(1, 80945260), (2, 40472630), (4, 20236315), (5, 16189052), (10, 8094526), (11, 7358660), (20, 4047263), (22, 3679330), (44, 1839665), (55, 1471732), (110, 735866), (139, 582340), (220, 367933), (278, 291170), (556, 145585), (695, 116468), (1390, 58234), (1529, 52940), (2647, 30580), (2780, 29117), (3058, 26470), (5294, 15290), (6116, 13235), (7645, 10588)]