64691990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4231}}^1$

素因数の和:4388

約数の個数: 32

約数和(自身を含む): 127975680

約数和(自身を除く): 63283690

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 139, 278, 695, 1390, 1529, 3058, 4231, 7645, 8462, 15290, 21155, 42310, 46541, 93082, 232705, 465410, 588109, 1176218, 2940545, 5881090, 6469199, 12938398, 32345995, 64691990]

約数ペア:

[(1, 64691990), (2, 32345995), (5, 12938398), (10, 6469199), (11, 5881090), (22, 2940545), (55, 1176218), (110, 588109), (139, 465410), (278, 232705), (695, 93082), (1390, 46541), (1529, 42310), (3058, 21155), (4231, 15290), (7645, 8462)]