17977980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{3089}}^1$

素因数の和:3198

約数の個数: 48

約数和(自身を含む): 50873760

約数和(自身を除く): 32895780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 97, 194, 291, 388, 485, 582, 970, 1164, 1455, 1940, 2910, 3089, 5820, 6178, 9267, 12356, 15445, 18534, 30890, 37068, 46335, 61780, 92670, 185340, 299633, 599266, 898899, 1198532, 1498165, 1797798, 2996330, 3595596, 4494495, 5992660, 8988990, 17977980]

約数ペア:

[(1, 17977980), (2, 8988990), (3, 5992660), (4, 4494495), (5, 3595596), (6, 2996330), (10, 1797798), (12, 1498165), (15, 1198532), (20, 898899), (30, 599266), (60, 299633), (97, 185340), (194, 92670), (291, 61780), (388, 46335), (485, 37068), (582, 30890), (970, 18534), (1164, 15445), (1455, 12356), (1940, 9267), (2910, 6178), (3089, 5820)]