788360120

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{311}}^1\times {\mathrm{499}}^1$

素因数の和:948

約数の個数: 64

約数和(自身を含む): 1797120000

約数和(自身を除く): 1008759880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 311, 499, 508, 622, 635, 998, 1016, 1244, 1270, 1555, 1996, 2488, 2495, 2540, 3110, 3992, 4990, 5080, 6220, 9980, 12440, 19960, 39497, 63373, 78994, 126746, 155189, 157988, 197485, 253492, 310378, 315976, 316865, 394970, 506984, 620756, 633730, 775945, 789940, 1241512, 1267460, 1551890, 1579880, 2534920, 3103780, 6207560, 19709003, 39418006, 78836012, 98545015, 157672024, 197090030, 394180060, 788360120]

約数ペア:

[(1, 788360120), (2, 394180060), (4, 197090030), (5, 157672024), (8, 98545015), (10, 78836012), (20, 39418006), (40, 19709003), (127, 6207560), (254, 3103780), (311, 2534920), (499, 1579880), (508, 1551890), (622, 1267460), (635, 1241512), (998, 789940), (1016, 775945), (1244, 633730), (1270, 620756), (1555, 506984), (1996, 394970), (2488, 316865), (2495, 315976), (2540, 310378), (3110, 253492), (3992, 197485), (4990, 157988), (5080, 155189), (6220, 126746), (9980, 78994), (12440, 63373), (19960, 39497)]