81741040

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53777}}^1$

素因数の和:53809

約数の個数: 40

約数和(自身を含む): 200054160

約数和(自身を除く): 118313120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53777, 107554, 215108, 268885, 430216, 537770, 860432, 1021763, 1075540, 2043526, 2151080, 4087052, 4302160, 5108815, 8174104, 10217630, 16348208, 20435260, 40870520, 81741040]

約数ペア:

[(1, 81741040), (2, 40870520), (4, 20435260), (5, 16348208), (8, 10217630), (10, 8174104), (16, 5108815), (19, 4302160), (20, 4087052), (38, 2151080), (40, 2043526), (76, 1075540), (80, 1021763), (95, 860432), (152, 537770), (190, 430216), (304, 268885), (380, 215108), (760, 107554), (1520, 53777)]