920530455

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{311}}^1\times {\mathrm{353}}^1$

素因数の和:728

約数の個数: 64

約数和(自身を含む): 1632863232

約数和(自身を除く): 712332777

約数列:

[1, 3, 5, 13, 15, 39, 43, 65, 129, 195, 215, 311, 353, 559, 645, 933, 1059, 1555, 1677, 1765, 2795, 4043, 4589, 4665, 5295, 8385, 12129, 13373, 13767, 15179, 20215, 22945, 40119, 45537, 60645, 66865, 68835, 75895, 109783, 173849, 197327, 200595, 227685, 329349, 521547, 548915, 591981, 869245, 986635, 1427179, 1646745, 2607735, 2959905, 4281537, 4720669, 7135895, 14162007, 21407685, 23603345, 61368697, 70810035, 184106091, 306843485, 920530455]

約数ペア:

[(1, 920530455), (3, 306843485), (5, 184106091), (13, 70810035), (15, 61368697), (39, 23603345), (43, 21407685), (65, 14162007), (129, 7135895), (195, 4720669), (215, 4281537), (311, 2959905), (353, 2607735), (559, 1646745), (645, 1427179), (933, 986635), (1059, 869245), (1555, 591981), (1677, 548915), (1765, 521547), (2795, 329349), (4043, 227685), (4589, 200595), (4665, 197327), (5295, 173849), (8385, 109783), (12129, 75895), (13373, 68835), (13767, 66865), (15179, 60645), (20215, 45537), (22945, 40119)]