81289905

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{2963}}^1$

素因数の和:3061

約数の個数: 32

約数和(自身を含む): 136581120

約数和(自身を除く): 55291215

約数列:

[1, 3, 5, 15, 31, 59, 93, 155, 177, 295, 465, 885, 1829, 2963, 5487, 8889, 9145, 14815, 27435, 44445, 91853, 174817, 275559, 459265, 524451, 874085, 1377795, 2622255, 5419327, 16257981, 27096635, 81289905]

約数ペア:

[(1, 81289905), (3, 27096635), (5, 16257981), (15, 5419327), (31, 2622255), (59, 1377795), (93, 874085), (155, 524451), (177, 459265), (295, 275559), (465, 174817), (885, 91853), (1829, 44445), (2963, 27435), (5487, 14815), (8889, 9145)]