261489774

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2207}}^1$

素因数の和:2270

約数の個数: 96

約数和(自身を含む): 676601856

約数和(自身を除く): 415112082

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 31, 39, 42, 49, 62, 78, 91, 93, 98, 147, 182, 186, 217, 273, 294, 403, 434, 546, 637, 651, 806, 1209, 1274, 1302, 1519, 1911, 2207, 2418, 2821, 3038, 3822, 4414, 4557, 5642, 6621, 8463, 9114, 13242, 15449, 16926, 19747, 28691, 30898, 39494, 46347, 57382, 59241, 68417, 86073, 92694, 108143, 118482, 136834, 172146, 200837, 205251, 216286, 324429, 401674, 410502, 478919, 602511, 648858, 889421, 957838, 1205022, 1405859, 1436757, 1778842, 2668263, 2811718, 2873514, 3352433, 4217577, 5336526, 6225947, 6704866, 8435154, 10057299, 12451894, 18677841, 20114598, 37355682, 43581629, 87163258, 130744887, 261489774]

約数ペア:

[(1, 261489774), (2, 130744887), (3, 87163258), (6, 43581629), (7, 37355682), (13, 20114598), (14, 18677841), (21, 12451894), (26, 10057299), (31, 8435154), (39, 6704866), (42, 6225947), (49, 5336526), (62, 4217577), (78, 3352433), (91, 2873514), (93, 2811718), (98, 2668263), (147, 1778842), (182, 1436757), (186, 1405859), (217, 1205022), (273, 957838), (294, 889421), (403, 648858), (434, 602511), (546, 478919), (637, 410502), (651, 401674), (806, 324429), (1209, 216286), (1274, 205251), (1302, 200837), (1519, 172146), (1911, 136834), (2207, 118482), (2418, 108143), (2821, 92694), (3038, 86073), (3822, 68417), (4414, 59241), (4557, 57382), (5642, 46347), (6621, 39494), (8463, 30898), (9114, 28691), (13242, 19747), (15449, 16926)]