66207760

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{4201}}^1$

素因数の和:4411

約数の個数: 40

約数和(自身を含む): 154751256

約数和(自身を除く): 88543496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 4201, 7880, 8402, 15760, 16804, 21005, 33608, 42010, 67216, 84020, 168040, 336080, 827597, 1655194, 3310388, 4137985, 6620776, 8275970, 13241552, 16551940, 33103880, 66207760]

約数ペア:

[(1, 66207760), (2, 33103880), (4, 16551940), (5, 13241552), (8, 8275970), (10, 6620776), (16, 4137985), (20, 3310388), (40, 1655194), (80, 827597), (197, 336080), (394, 168040), (788, 84020), (985, 67216), (1576, 42010), (1970, 33608), (3152, 21005), (3940, 16804), (4201, 15760), (7880, 8402)]