639865395

素因数分解:

$3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{3517}}^1$

素因数の和:3852

約数の個数: 48

約数和(自身を含む): 1198596672

約数和(自身を除く): 558731277

約数列:

[1, 3, 5, 9, 13, 15, 39, 45, 65, 117, 195, 311, 585, 933, 1555, 2799, 3517, 4043, 4665, 10551, 12129, 13995, 17585, 20215, 31653, 36387, 45721, 52755, 60645, 137163, 158265, 181935, 228605, 411489, 685815, 1093787, 2057445, 3281361, 5468935, 9844083, 14219231, 16406805, 42657693, 49220415, 71096155, 127973079, 213288465, 639865395]

約数ペア:

[(1, 639865395), (3, 213288465), (5, 127973079), (9, 71096155), (13, 49220415), (15, 42657693), (39, 16406805), (45, 14219231), (65, 9844083), (117, 5468935), (195, 3281361), (311, 2057445), (585, 1093787), (933, 685815), (1555, 411489), (2799, 228605), (3517, 181935), (4043, 158265), (4665, 137163), (10551, 60645), (12129, 52755), (13995, 45721), (17585, 36387), (20215, 31653)]