20215488368

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{69197}}^1$

素因数の和:69286

約数の個数: 60

約数和(自身を含む): 42602440680

約数和(自身を除く): 22386952312

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 124, 152, 248, 304, 496, 589, 961, 1178, 1922, 2356, 3844, 4712, 7688, 9424, 15376, 18259, 36518, 69197, 73036, 138394, 146072, 276788, 292144, 553576, 1107152, 1314743, 2145107, 2629486, 4290214, 5258972, 8580428, 10517944, 17160856, 21035888, 34321712, 40757033, 66498317, 81514066, 132996634, 163028132, 265993268, 326056264, 531986536, 652112528, 1063973072, 1263468023, 2526936046, 5053872092, 10107744184, 20215488368]

約数ペア:

[(1, 20215488368), (2, 10107744184), (4, 5053872092), (8, 2526936046), (16, 1263468023), (19, 1063973072), (31, 652112528), (38, 531986536), (62, 326056264), (76, 265993268), (124, 163028132), (152, 132996634), (248, 81514066), (304, 66498317), (496, 40757033), (589, 34321712), (961, 21035888), (1178, 17160856), (1922, 10517944), (2356, 8580428), (3844, 5258972), (4712, 4290214), (7688, 2629486), (9424, 2145107), (15376, 1314743), (18259, 1107152), (36518, 553576), (69197, 292144), (73036, 276788), (138394, 146072)]