18815334928

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{71171}}^1$

素因数の和:71264

約数の個数: 80

約数和(自身を含む): 41514342912

約数和(自身を除く): 22699007984

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 41, 52, 62, 82, 104, 124, 164, 208, 248, 328, 403, 496, 533, 656, 806, 1066, 1271, 1612, 2132, 2542, 3224, 4264, 5084, 6448, 8528, 10168, 16523, 20336, 33046, 66092, 71171, 132184, 142342, 264368, 284684, 569368, 925223, 1138736, 1850446, 2206301, 2918011, 3700892, 4412602, 5836022, 7401784, 8825204, 11672044, 14803568, 17650408, 23344088, 28681913, 35300816, 37934143, 46688176, 57363826, 75868286, 90458341, 114727652, 151736572, 180916682, 229455304, 303473144, 361833364, 458910608, 606946288, 723666728, 1175958433, 1447333456, 2351916866, 4703833732, 9407667464, 18815334928]

約数ペア:

[(1, 18815334928), (2, 9407667464), (4, 4703833732), (8, 2351916866), (13, 1447333456), (16, 1175958433), (26, 723666728), (31, 606946288), (41, 458910608), (52, 361833364), (62, 303473144), (82, 229455304), (104, 180916682), (124, 151736572), (164, 114727652), (208, 90458341), (248, 75868286), (328, 57363826), (403, 46688176), (496, 37934143), (533, 35300816), (656, 28681913), (806, 23344088), (1066, 17650408), (1271, 14803568), (1612, 11672044), (2132, 8825204), (2542, 7401784), (3224, 5836022), (4264, 4412602), (5084, 3700892), (6448, 2918011), (8528, 2206301), (10168, 1850446), (16523, 1138736), (20336, 925223), (33046, 569368), (66092, 284684), (71171, 264368), (132184, 142342)]