20019636

素因数分解:

$2^2\times 3^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1$

素因数の和:140

約数の個数: 180

約数和(自身を含む): 66238788

約数和(自身を除く): 46219152

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 13, 14, 18, 21, 26, 27, 28, 36, 39, 42, 49, 52, 54, 63, 78, 81, 84, 91, 97, 98, 108, 117, 126, 147, 156, 162, 182, 189, 194, 196, 234, 252, 273, 291, 294, 324, 351, 364, 378, 388, 441, 468, 546, 567, 582, 588, 637, 679, 702, 756, 819, 873, 882, 1053, 1092, 1134, 1164, 1261, 1274, 1323, 1358, 1404, 1638, 1746, 1764, 1911, 2037, 2106, 2268, 2457, 2522, 2548, 2619, 2646, 2716, 3276, 3492, 3783, 3822, 3969, 4074, 4212, 4753, 4914, 5044, 5238, 5292, 5733, 6111, 7371, 7566, 7644, 7857, 7938, 8148, 8827, 9506, 9828, 10476, 11349, 11466, 12222, 14259, 14742, 15132, 15714, 15876, 17199, 17654, 18333, 19012, 22698, 22932, 24444, 26481, 28518, 29484, 31428, 34047, 34398, 35308, 36666, 42777, 45396, 51597, 52962, 54999, 57036, 61789, 68094, 68796, 73332, 79443, 85554, 102141, 103194, 105924, 109998, 123578, 128331, 136188, 158886, 171108, 185367, 204282, 206388, 219996, 238329, 247156, 256662, 317772, 370734, 384993, 408564, 476658, 513324, 556101, 714987, 741468, 769986, 953316, 1112202, 1429974, 1539972, 1668303, 2224404, 2859948, 3336606, 5004909, 6673212, 10009818, 20019636]

約数ペア:

[(1, 20019636), (2, 10009818), (3, 6673212), (4, 5004909), (6, 3336606), (7, 2859948), (9, 2224404), (12, 1668303), (13, 1539972), (14, 1429974), (18, 1112202), (21, 953316), (26, 769986), (27, 741468), (28, 714987), (36, 556101), (39, 513324), (42, 476658), (49, 408564), (52, 384993), (54, 370734), (63, 317772), (78, 256662), (81, 247156), (84, 238329), (91, 219996), (97, 206388), (98, 204282), (108, 185367), (117, 171108), (126, 158886), (147, 136188), (156, 128331), (162, 123578), (182, 109998), (189, 105924), (194, 103194), (196, 102141), (234, 85554), (252, 79443), (273, 73332), (291, 68796), (294, 68094), (324, 61789), (351, 57036), (364, 54999), (378, 52962), (388, 51597), (441, 45396), (468, 42777), (546, 36666), (567, 35308), (582, 34398), (588, 34047), (637, 31428), (679, 29484), (702, 28518), (756, 26481), (819, 24444), (873, 22932), (882, 22698), (1053, 19012), (1092, 18333), (1134, 17654), (1164, 17199), (1261, 15876), (1274, 15714), (1323, 15132), (1358, 14742), (1404, 14259), (1638, 12222), (1746, 11466), (1764, 11349), (1911, 10476), (2037, 9828), (2106, 9506), (2268, 8827), (2457, 8148), (2522, 7938), (2548, 7857), (2619, 7644), (2646, 7566), (2716, 7371), (3276, 6111), (3492, 5733), (3783, 5292), (3822, 5238), (3969, 5044), (4074, 4914), (4212, 4753)]