1296348580880

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{265645201}}^1$

素因数の和:265645275

約数の個数: 40

約数和(自身を含む): 3063420469464

約数和(自身を除く): 1767071888584

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 265645201, 531290402, 1062580804, 1328226005, 2125161608, 2656452010, 4250323216, 5312904020, 10625808040, 16204357261, 21251616080, 32408714522, 64817429044, 81021786305, 129634858088, 162043572610, 259269716176, 324087145220, 648174290440, 1296348580880]

約数ペア:

[(1, 1296348580880), (2, 648174290440), (4, 324087145220), (5, 259269716176), (8, 162043572610), (10, 129634858088), (16, 81021786305), (20, 64817429044), (40, 32408714522), (61, 21251616080), (80, 16204357261), (122, 10625808040), (244, 5312904020), (305, 4250323216), (488, 2656452010), (610, 2125161608), (976, 1328226005), (1220, 1062580804), (2440, 531290402), (4880, 265645201)]