20807846745

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{1993}}^1\times {\mathrm{5849}}^1$

素因数の和:7874

約数の個数: 64

約数和(自身を含む): 40313894400

約数和(自身を除く): 19506047655

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 85, 105, 119, 255, 357, 595, 1785, 1993, 5849, 5979, 9965, 13951, 17547, 29245, 29895, 33881, 40943, 41853, 69755, 87735, 99433, 101643, 122829, 169405, 204715, 209265, 237167, 298299, 497165, 508215, 614145, 696031, 711501, 1185835, 1491495, 2088093, 3480155, 3557505, 10440465, 11657057, 34971171, 58285285, 81599399, 174855855, 198169969, 244798197, 407996995, 594509907, 990849845, 1223990985, 1387189783, 2972549535, 4161569349, 6935948915, 20807846745]

約数ペア:

[(1, 20807846745), (3, 6935948915), (5, 4161569349), (7, 2972549535), (15, 1387189783), (17, 1223990985), (21, 990849845), (35, 594509907), (51, 407996995), (85, 244798197), (105, 198169969), (119, 174855855), (255, 81599399), (357, 58285285), (595, 34971171), (1785, 11657057), (1993, 10440465), (5849, 3557505), (5979, 3480155), (9965, 2088093), (13951, 1491495), (17547, 1185835), (29245, 711501), (29895, 696031), (33881, 614145), (40943, 508215), (41853, 497165), (69755, 298299), (87735, 237167), (99433, 209265), (101643, 204715), (122829, 169405)]