20802045

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{907}}^1$

素因数の和:1065

約数の個数: 32

約数和(自身を含む): 36610560

約数和(自身を除く): 15808515

約数列:

[1, 3, 5, 11, 15, 33, 55, 139, 165, 417, 695, 907, 1529, 2085, 2721, 4535, 4587, 7645, 9977, 13605, 22935, 29931, 49885, 126073, 149655, 378219, 630365, 1386803, 1891095, 4160409, 6934015, 20802045]

約数ペア:

[(1, 20802045), (3, 6934015), (5, 4160409), (11, 1891095), (15, 1386803), (33, 630365), (55, 378219), (139, 149655), (165, 126073), (417, 49885), (695, 29931), (907, 22935), (1529, 13605), (2085, 9977), (2721, 7645), (4535, 4587)]