19972576

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{1171}}^1$

素因数の和:1235

約数の個数: 48

約数和(自身を含む): 43415568

約数和(自身を除く): 23442992

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 82, 104, 164, 208, 328, 416, 533, 656, 1066, 1171, 1312, 2132, 2342, 4264, 4684, 8528, 9368, 15223, 17056, 18736, 30446, 37472, 48011, 60892, 96022, 121784, 192044, 243568, 384088, 487136, 624143, 768176, 1248286, 1536352, 2496572, 4993144, 9986288, 19972576]

約数ペア:

[(1, 19972576), (2, 9986288), (4, 4993144), (8, 2496572), (13, 1536352), (16, 1248286), (26, 768176), (32, 624143), (41, 487136), (52, 384088), (82, 243568), (104, 192044), (164, 121784), (208, 96022), (328, 60892), (416, 48011), (533, 37472), (656, 30446), (1066, 18736), (1171, 17056), (1312, 15223), (2132, 9368), (2342, 8528), (4264, 4684)]