391521956

素因数分解:

$2^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{587}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 827711136

約数和(自身を除く): 436189180

約数列:

[1, 2, 4, 7, 14, 28, 41, 49, 82, 83, 98, 164, 166, 196, 287, 332, 574, 581, 587, 1148, 1162, 1174, 2009, 2324, 2348, 3403, 4018, 4067, 4109, 6806, 8036, 8134, 8218, 13612, 16268, 16436, 23821, 24067, 28763, 47642, 48134, 48721, 57526, 95284, 96268, 97442, 115052, 166747, 168469, 194884, 333494, 336938, 341047, 666988, 673876, 682094, 1179283, 1364188, 1997561, 2358566, 2387329, 3995122, 4717132, 4774658, 7990244, 9549316, 13982927, 27965854, 55931708, 97880489, 195760978, 391521956]

約数ペア:

[(1, 391521956), (2, 195760978), (4, 97880489), (7, 55931708), (14, 27965854), (28, 13982927), (41, 9549316), (49, 7990244), (82, 4774658), (83, 4717132), (98, 3995122), (164, 2387329), (166, 2358566), (196, 1997561), (287, 1364188), (332, 1179283), (574, 682094), (581, 673876), (587, 666988), (1148, 341047), (1162, 336938), (1174, 333494), (2009, 194884), (2324, 168469), (2348, 166747), (3403, 115052), (4018, 97442), (4067, 96268), (4109, 95284), (6806, 57526), (8036, 48721), (8134, 48134), (8218, 47642), (13612, 28763), (16268, 24067), (16436, 23821)]