20802079160

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1059169}}^1$

素因数の和:1059671

約数の個数: 32

約数和(自身を含む): 46900047600

約数和(自身を除く): 26097968440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 19640, 1059169, 2118338, 4236676, 5295845, 8473352, 10591690, 21183380, 42366760, 520051979, 1040103958, 2080207916, 2600259895, 4160415832, 5200519790, 10401039580, 20802079160]

約数ペア:

[(1, 20802079160), (2, 10401039580), (4, 5200519790), (5, 4160415832), (8, 2600259895), (10, 2080207916), (20, 1040103958), (40, 520051979), (491, 42366760), (982, 21183380), (1964, 10591690), (2455, 8473352), (3928, 5295845), (4910, 4236676), (9820, 2118338), (19640, 1059169)]