20123805124

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{577}}^1$

素因数の和:897

約数の個数: 72

約数和(自身を含む): 37476900384

約数和(自身を除く): 17353095260

約数列:

[1, 2, 4, 31, 43, 62, 86, 124, 172, 211, 422, 577, 844, 961, 1154, 1333, 1922, 2308, 2666, 3844, 5332, 6541, 9073, 13082, 17887, 18146, 24811, 26164, 35774, 36292, 41323, 49622, 71548, 82646, 99244, 121747, 165292, 202771, 243494, 281263, 405542, 486988, 554497, 562526, 769141, 811084, 1108994, 1125052, 1538282, 2217988, 3076564, 3774157, 5235121, 7548314, 8719153, 10470242, 15096628, 17438306, 20940484, 23843371, 34876612, 47686742, 95373484, 116998867, 162288751, 233997734, 324577502, 467995468, 649155004, 5030951281, 10061902562, 20123805124]

約数ペア:

[(1, 20123805124), (2, 10061902562), (4, 5030951281), (31, 649155004), (43, 467995468), (62, 324577502), (86, 233997734), (124, 162288751), (172, 116998867), (211, 95373484), (422, 47686742), (577, 34876612), (844, 23843371), (961, 20940484), (1154, 17438306), (1333, 15096628), (1922, 10470242), (2308, 8719153), (2666, 7548314), (3844, 5235121), (5332, 3774157), (6541, 3076564), (9073, 2217988), (13082, 1538282), (17887, 1125052), (18146, 1108994), (24811, 811084), (26164, 769141), (35774, 562526), (36292, 554497), (41323, 486988), (49622, 405542), (71548, 281263), (82646, 243494), (99244, 202771), (121747, 165292)]