81585196

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{479}}^1$

素因数の和:587

約数の個数: 72

約数和(自身を含む): 183859200

約数和(自身を除く): 102274004

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 49, 77, 79, 98, 154, 158, 196, 308, 316, 479, 539, 553, 869, 958, 1078, 1106, 1738, 1916, 2156, 2212, 3353, 3476, 3871, 5269, 6083, 6706, 7742, 10538, 12166, 13412, 15484, 21076, 23471, 24332, 36883, 37841, 42581, 46942, 73766, 75682, 85162, 93884, 147532, 151364, 170324, 258181, 264887, 416251, 516362, 529774, 832502, 1032724, 1059548, 1665004, 1854209, 2913757, 3708418, 5827514, 7416836, 11655028, 20396299, 40792598, 81585196]

約数ペア:

[(1, 81585196), (2, 40792598), (4, 20396299), (7, 11655028), (11, 7416836), (14, 5827514), (22, 3708418), (28, 2913757), (44, 1854209), (49, 1665004), (77, 1059548), (79, 1032724), (98, 832502), (154, 529774), (158, 516362), (196, 416251), (308, 264887), (316, 258181), (479, 170324), (539, 151364), (553, 147532), (869, 93884), (958, 85162), (1078, 75682), (1106, 73766), (1738, 46942), (1916, 42581), (2156, 37841), (2212, 36883), (3353, 24332), (3476, 23471), (3871, 21076), (5269, 15484), (6083, 13412), (6706, 12166), (7742, 10538)]