20808712106

素因数分解:

$2^1\times 7^2\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{743}}^1$

素因数の和:893

約数の個数: 144

約数和(自身を含む): 41907585600

約数和(自身を除く): 21098873494

約数列:

[1, 2, 7, 13, 14, 19, 26, 38, 49, 89, 91, 98, 133, 169, 178, 182, 247, 266, 338, 494, 623, 637, 743, 931, 1157, 1183, 1246, 1274, 1486, 1691, 1729, 1862, 2314, 2366, 3211, 3382, 3458, 4361, 5201, 6422, 8099, 8281, 8722, 9659, 10402, 11837, 12103, 14117, 15041, 16198, 16562, 19318, 21983, 22477, 23674, 24206, 28234, 30082, 36407, 43966, 44954, 56693, 66127, 67613, 72814, 82859, 98819, 105287, 113386, 125567, 132254, 135226, 153881, 157339, 165718, 183521, 197638, 210574, 251134, 285779, 307762, 314678, 367042, 462889, 473291, 571558, 691733, 737009, 859651, 878969, 925778, 946582, 1077167, 1256413, 1284647, 1383466, 1474018, 1719302, 1757938, 2000453, 2154334, 2385773, 2512826, 2569294, 3240223, 4000906, 4771546, 6017557, 6152783, 6480446, 8794891, 8992529, 11175463, 12035114, 12305566, 14003171, 16333369, 16700411, 17589782, 17985058, 22350926, 28006342, 32666738, 33400822, 42122899, 61564237, 78228241, 84245798, 114333583, 116902877, 123128474, 156456482, 212333797, 228667166, 233805754, 424667594, 547597687, 800335081, 1095195374, 1486336579, 1600670162, 2972673158, 10404356053, 20808712106]

約数ペア:

[(1, 20808712106), (2, 10404356053), (7, 2972673158), (13, 1600670162), (14, 1486336579), (19, 1095195374), (26, 800335081), (38, 547597687), (49, 424667594), (89, 233805754), (91, 228667166), (98, 212333797), (133, 156456482), (169, 123128474), (178, 116902877), (182, 114333583), (247, 84245798), (266, 78228241), (338, 61564237), (494, 42122899), (623, 33400822), (637, 32666738), (743, 28006342), (931, 22350926), (1157, 17985058), (1183, 17589782), (1246, 16700411), (1274, 16333369), (1486, 14003171), (1691, 12305566), (1729, 12035114), (1862, 11175463), (2314, 8992529), (2366, 8794891), (3211, 6480446), (3382, 6152783), (3458, 6017557), (4361, 4771546), (5201, 4000906), (6422, 3240223), (8099, 2569294), (8281, 2512826), (8722, 2385773), (9659, 2154334), (10402, 2000453), (11837, 1757938), (12103, 1719302), (14117, 1474018), (15041, 1383466), (16198, 1284647), (16562, 1256413), (19318, 1077167), (21983, 946582), (22477, 925778), (23674, 878969), (24206, 859651), (28234, 737009), (30082, 691733), (36407, 571558), (43966, 473291), (44954, 462889), (56693, 367042), (66127, 314678), (67613, 307762), (72814, 285779), (82859, 251134), (98819, 210574), (105287, 197638), (113386, 183521), (125567, 165718), (132254, 157339), (135226, 153881)]