205990096

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{1109}}^1$

素因数の和:1196

約数の個数: 80

約数和(自身を含む): 462470400

約数和(自身を除く): 256480304

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 47, 52, 76, 94, 104, 152, 188, 208, 247, 304, 376, 494, 611, 752, 893, 988, 1109, 1222, 1786, 1976, 2218, 2444, 3572, 3952, 4436, 4888, 7144, 8872, 9776, 11609, 14288, 14417, 17744, 21071, 23218, 28834, 42142, 46436, 52123, 57668, 84284, 92872, 104246, 115336, 168568, 185744, 208492, 230672, 273923, 337136, 416984, 547846, 677599, 833968, 990337, 1095692, 1355198, 1980674, 2191384, 2710396, 3961348, 4382768, 5420792, 7922696, 10841584, 12874381, 15845392, 25748762, 51497524, 102995048, 205990096]

約数ペア:

[(1, 205990096), (2, 102995048), (4, 51497524), (8, 25748762), (13, 15845392), (16, 12874381), (19, 10841584), (26, 7922696), (38, 5420792), (47, 4382768), (52, 3961348), (76, 2710396), (94, 2191384), (104, 1980674), (152, 1355198), (188, 1095692), (208, 990337), (247, 833968), (304, 677599), (376, 547846), (494, 416984), (611, 337136), (752, 273923), (893, 230672), (988, 208492), (1109, 185744), (1222, 168568), (1786, 115336), (1976, 104246), (2218, 92872), (2444, 84284), (3572, 57668), (3952, 52123), (4436, 46436), (4888, 42142), (7144, 28834), (8872, 23218), (9776, 21071), (11609, 17744), (14288, 14417)]