138725180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{389}}^1\times {\mathrm{1621}}^1$

素因数の和:2030

約数の個数: 48

約数和(自身を含む): 318820320

約数和(自身を除く): 180095140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 389, 778, 1556, 1621, 1945, 3242, 3890, 4279, 6484, 7780, 8105, 8558, 16210, 17116, 17831, 21395, 32420, 35662, 42790, 71324, 85580, 89155, 178310, 356620, 630569, 1261138, 2522276, 3152845, 6305690, 6936259, 12611380, 13872518, 27745036, 34681295, 69362590, 138725180]

約数ペア:

[(1, 138725180), (2, 69362590), (4, 34681295), (5, 27745036), (10, 13872518), (11, 12611380), (20, 6936259), (22, 6305690), (44, 3152845), (55, 2522276), (110, 1261138), (220, 630569), (389, 356620), (778, 178310), (1556, 89155), (1621, 85580), (1945, 71324), (3242, 42790), (3890, 35662), (4279, 32420), (6484, 21395), (7780, 17831), (8105, 17116), (8558, 16210)]