1276278340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{421}}^1\times {\mathrm{3697}}^1$

素因数の和:4168

約数の個数: 48

約数和(自身を含む): 2752820784

約数和(自身を除く): 1476542444

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 421, 820, 842, 1684, 2105, 3697, 4210, 7394, 8420, 14788, 17261, 18485, 34522, 36970, 69044, 73940, 86305, 151577, 172610, 303154, 345220, 606308, 757885, 1515770, 1556437, 3031540, 3112874, 6225748, 7782185, 15564370, 31128740, 63813917, 127627834, 255255668, 319069585, 638139170, 1276278340]

約数ペア:

[(1, 1276278340), (2, 638139170), (4, 319069585), (5, 255255668), (10, 127627834), (20, 63813917), (41, 31128740), (82, 15564370), (164, 7782185), (205, 6225748), (410, 3112874), (421, 3031540), (820, 1556437), (842, 1515770), (1684, 757885), (2105, 606308), (3697, 345220), (4210, 303154), (7394, 172610), (8420, 151577), (14788, 86305), (17261, 73940), (18485, 69044), (34522, 36970)]