81134960

素因数分解:

$2^4\times 5^1\times {\mathrm{373}}^1\times {\mathrm{2719}}^1$

素因数の和:3105

約数の個数: 40

約数和(自身を含む): 189214080

約数和(自身を除く): 108079120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 373, 746, 1492, 1865, 2719, 2984, 3730, 5438, 5968, 7460, 10876, 13595, 14920, 21752, 27190, 29840, 43504, 54380, 108760, 217520, 1014187, 2028374, 4056748, 5070935, 8113496, 10141870, 16226992, 20283740, 40567480, 81134960]

約数ペア:

[(1, 81134960), (2, 40567480), (4, 20283740), (5, 16226992), (8, 10141870), (10, 8113496), (16, 5070935), (20, 4056748), (40, 2028374), (80, 1014187), (373, 217520), (746, 108760), (1492, 54380), (1865, 43504), (2719, 29840), (2984, 27190), (3730, 21752), (5438, 14920), (5968, 13595), (7460, 10876)]