72685886

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{991}}^1$

素因数の和:1057

約数の個数: 48

約数和(自身を含む): 139419648

約数和(自身を除く): 66733762

約数列:

[1, 2, 7, 13, 14, 26, 31, 62, 91, 169, 182, 217, 338, 403, 434, 806, 991, 1183, 1982, 2366, 2821, 5239, 5642, 6937, 10478, 12883, 13874, 25766, 30721, 36673, 61442, 73346, 90181, 167479, 180362, 215047, 334958, 399373, 430094, 798746, 1172353, 2344706, 2795611, 5191849, 5591222, 10383698, 36342943, 72685886]

約数ペア:

[(1, 72685886), (2, 36342943), (7, 10383698), (13, 5591222), (14, 5191849), (26, 2795611), (31, 2344706), (62, 1172353), (91, 798746), (169, 430094), (182, 399373), (217, 334958), (338, 215047), (403, 180362), (434, 167479), (806, 90181), (991, 73346), (1183, 61442), (1982, 36673), (2366, 30721), (2821, 25766), (5239, 13874), (5642, 12883), (6937, 10478)]