28055120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{5749}}^1$

素因数の和:5823

約数の個数: 40

約数和(自身を含む): 66309000

約数和(自身を除く): 38253880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 5749, 11498, 22996, 28745, 45992, 57490, 91984, 114980, 229960, 350689, 459920, 701378, 1402756, 1753445, 2805512, 3506890, 5611024, 7013780, 14027560, 28055120]

約数ペア:

[(1, 28055120), (2, 14027560), (4, 7013780), (5, 5611024), (8, 3506890), (10, 2805512), (16, 1753445), (20, 1402756), (40, 701378), (61, 459920), (80, 350689), (122, 229960), (244, 114980), (305, 91984), (488, 57490), (610, 45992), (976, 28745), (1220, 22996), (2440, 11498), (4880, 5749)]