20689173855

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{19801}}^1$

素因数の和:19957

約数の個数: 96

約数和(自身を含む): 42703884288

約数和(自身を除く): 22014710433

約数列:

[1, 3, 5, 7, 9, 15, 21, 31, 35, 45, 63, 93, 105, 107, 155, 217, 279, 315, 321, 465, 535, 651, 749, 963, 1085, 1395, 1605, 1953, 2247, 3255, 3317, 3745, 4815, 6741, 9765, 9951, 11235, 16585, 19801, 23219, 29853, 33705, 49755, 59403, 69657, 99005, 116095, 138607, 149265, 178209, 208971, 297015, 348285, 415821, 613831, 693035, 891045, 1044855, 1247463, 1841493, 2079105, 2118707, 3069155, 4296817, 5524479, 6237315, 6356121, 9207465, 10593535, 12890451, 14830949, 19068363, 21484085, 27622395, 31780605, 38671353, 44492847, 64452255, 65679917, 74154745, 95341815, 133478541, 193356765, 197039751, 222464235, 328399585, 459759419, 591119253, 667392705, 985198755, 1379278257, 2298797095, 2955596265, 4137834771, 6896391285, 20689173855]

約数ペア:

[(1, 20689173855), (3, 6896391285), (5, 4137834771), (7, 2955596265), (9, 2298797095), (15, 1379278257), (21, 985198755), (31, 667392705), (35, 591119253), (45, 459759419), (63, 328399585), (93, 222464235), (105, 197039751), (107, 193356765), (155, 133478541), (217, 95341815), (279, 74154745), (315, 65679917), (321, 64452255), (465, 44492847), (535, 38671353), (651, 31780605), (749, 27622395), (963, 21484085), (1085, 19068363), (1395, 14830949), (1605, 12890451), (1953, 10593535), (2247, 9207465), (3255, 6356121), (3317, 6237315), (3745, 5524479), (4815, 4296817), (6741, 3069155), (9765, 2118707), (9951, 2079105), (11235, 1841493), (16585, 1247463), (19801, 1044855), (23219, 891045), (29853, 693035), (33705, 613831), (49755, 415821), (59403, 348285), (69657, 297015), (99005, 208971), (116095, 178209), (138607, 149265)]