20420730

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{20627}}^1$

素因数の和:20651

約数の個数: 48

約数和(自身を含む): 57923424

約数和(自身を除く): 37502694

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 20627, 41254, 61881, 103135, 123762, 185643, 206270, 226897, 309405, 371286, 453794, 618810, 680691, 928215, 1134485, 1361382, 1856430, 2042073, 2268970, 3403455, 4084146, 6806910, 10210365, 20420730]

約数ペア:

[(1, 20420730), (2, 10210365), (3, 6806910), (5, 4084146), (6, 3403455), (9, 2268970), (10, 2042073), (11, 1856430), (15, 1361382), (18, 1134485), (22, 928215), (30, 680691), (33, 618810), (45, 453794), (55, 371286), (66, 309405), (90, 226897), (99, 206270), (110, 185643), (165, 123762), (198, 103135), (330, 61881), (495, 41254), (990, 20627)]