256536735

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{163}}^1\times {\mathrm{1153}}^1$

素因数の和:1344

約数の個数: 64

約数和(自身を含む): 508720128

約数和(自身を除く): 252183393

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 163, 195, 273, 455, 489, 815, 1141, 1153, 1365, 2119, 2445, 3423, 3459, 5705, 5765, 6357, 8071, 10595, 14833, 14989, 17115, 17295, 24213, 31785, 40355, 44499, 44967, 74165, 74945, 104923, 121065, 187939, 222495, 224835, 314769, 524615, 563817, 939695, 1315573, 1573845, 2443207, 2819085, 3946719, 6577865, 7329621, 12216035, 17102449, 19733595, 36648105, 51307347, 85512245, 256536735]

約数ペア:

[(1, 256536735), (3, 85512245), (5, 51307347), (7, 36648105), (13, 19733595), (15, 17102449), (21, 12216035), (35, 7329621), (39, 6577865), (65, 3946719), (91, 2819085), (105, 2443207), (163, 1573845), (195, 1315573), (273, 939695), (455, 563817), (489, 524615), (815, 314769), (1141, 224835), (1153, 222495), (1365, 187939), (2119, 121065), (2445, 104923), (3423, 74945), (3459, 74165), (5705, 44967), (5765, 44499), (6357, 40355), (8071, 31785), (10595, 24213), (14833, 17295), (14989, 17115)]