20580451460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{223}}^1\times {\mathrm{159119}}^1$

素因数の和:159380

約数の個数: 48

約数和(自身を含む): 44910028800

約数和(自身を除く): 24329577340

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 223, 290, 446, 580, 892, 1115, 2230, 4460, 6467, 12934, 25868, 32335, 64670, 129340, 159119, 318238, 636476, 795595, 1591190, 3182380, 4614451, 9228902, 18457804, 23072255, 35483537, 46144510, 70967074, 92289020, 141934148, 177417685, 354835370, 709670740, 1029022573, 2058045146, 4116090292, 5145112865, 10290225730, 20580451460]

約数ペア:

[(1, 20580451460), (2, 10290225730), (4, 5145112865), (5, 4116090292), (10, 2058045146), (20, 1029022573), (29, 709670740), (58, 354835370), (116, 177417685), (145, 141934148), (223, 92289020), (290, 70967074), (446, 46144510), (580, 35483537), (892, 23072255), (1115, 18457804), (2230, 9228902), (4460, 4614451), (6467, 3182380), (12934, 1591190), (25868, 795595), (32335, 636476), (64670, 318238), (129340, 159119)]