20530188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{257}}^1\times {\mathrm{317}}^1$

素因数の和:591

約数の個数: 72

約数和(自身を含む): 59728032

約数和(自身を除く): 39197844

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 257, 317, 514, 634, 771, 951, 1028, 1268, 1542, 1799, 1902, 2219, 2313, 2853, 3084, 3598, 3804, 4438, 4626, 5397, 5706, 6657, 7196, 8876, 9252, 10794, 11412, 13314, 16191, 19971, 21588, 26628, 32382, 39942, 64764, 79884, 81469, 162938, 244407, 325876, 488814, 570283, 733221, 977628, 1140566, 1466442, 1710849, 2281132, 2932884, 3421698, 5132547, 6843396, 10265094, 20530188]

約数ペア:

[(1, 20530188), (2, 10265094), (3, 6843396), (4, 5132547), (6, 3421698), (7, 2932884), (9, 2281132), (12, 1710849), (14, 1466442), (18, 1140566), (21, 977628), (28, 733221), (36, 570283), (42, 488814), (63, 325876), (84, 244407), (126, 162938), (252, 81469), (257, 79884), (317, 64764), (514, 39942), (634, 32382), (771, 26628), (951, 21588), (1028, 19971), (1268, 16191), (1542, 13314), (1799, 11412), (1902, 10794), (2219, 9252), (2313, 8876), (2853, 7196), (3084, 6657), (3598, 5706), (3804, 5397), (4438, 4626)]