66991960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{3571}}^1$

素因数の和:3656

約数の個数: 64

約数和(自身を含む): 174885120

約数和(自身を除く): 107893160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 1340, 1876, 2345, 2680, 3571, 3752, 4690, 7142, 9380, 14284, 17855, 18760, 24997, 28568, 35710, 49994, 71420, 99988, 124985, 142840, 199976, 239257, 249970, 478514, 499940, 957028, 999880, 1196285, 1674799, 1914056, 2392570, 3349598, 4785140, 6699196, 8373995, 9570280, 13398392, 16747990, 33495980, 66991960]

約数ペア:

[(1, 66991960), (2, 33495980), (4, 16747990), (5, 13398392), (7, 9570280), (8, 8373995), (10, 6699196), (14, 4785140), (20, 3349598), (28, 2392570), (35, 1914056), (40, 1674799), (56, 1196285), (67, 999880), (70, 957028), (134, 499940), (140, 478514), (268, 249970), (280, 239257), (335, 199976), (469, 142840), (536, 124985), (670, 99988), (938, 71420), (1340, 49994), (1876, 35710), (2345, 28568), (2680, 24997), (3571, 18760), (3752, 17855), (4690, 14284), (7142, 9380)]