81987785

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{29}}^1\times {\mathrm{4673}}^1$

素因数の和:4729

約数の個数: 24

約数和(自身を含む): 111895560

約数和(自身を除く): 29907775

約数列:

[1, 5, 11, 29, 55, 121, 145, 319, 605, 1595, 3509, 4673, 17545, 23365, 51403, 135517, 257015, 565433, 677585, 1490687, 2827165, 7453435, 16397557, 81987785]

約数ペア:

[(1, 81987785), (5, 16397557), (11, 7453435), (29, 2827165), (55, 1490687), (121, 677585), (145, 565433), (319, 257015), (605, 135517), (1595, 51403), (3509, 23365), (4673, 17545)]