64690288

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16369}}^1$

素因数の和:16409

約数の個数: 40

約数和(自身を含む): 142091600

約数和(自身を除く): 77401312

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 988, 1976, 3952, 16369, 32738, 65476, 130952, 212797, 261904, 311011, 425594, 622022, 851188, 1244044, 1702376, 2488088, 3404752, 4043143, 4976176, 8086286, 16172572, 32345144, 64690288]

約数ペア:

[(1, 64690288), (2, 32345144), (4, 16172572), (8, 8086286), (13, 4976176), (16, 4043143), (19, 3404752), (26, 2488088), (38, 1702376), (52, 1244044), (76, 851188), (104, 622022), (152, 425594), (208, 311011), (247, 261904), (304, 212797), (494, 130952), (988, 65476), (1976, 32738), (3952, 16369)]