138554220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{329891}}^1$

素因数の和:329910

約数の個数: 48

約数和(自身を含む): 443374848

約数和(自身を除く): 304820628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 329891, 659782, 989673, 1319564, 1649455, 1979346, 2309237, 3298910, 3958692, 4618474, 4948365, 6597820, 6927711, 9236948, 9896730, 11546185, 13855422, 19793460, 23092370, 27710844, 34638555, 46184740, 69277110, 138554220]

約数ペア:

[(1, 138554220), (2, 69277110), (3, 46184740), (4, 34638555), (5, 27710844), (6, 23092370), (7, 19793460), (10, 13855422), (12, 11546185), (14, 9896730), (15, 9236948), (20, 6927711), (21, 6597820), (28, 4948365), (30, 4618474), (35, 3958692), (42, 3298910), (60, 2309237), (70, 1979346), (84, 1649455), (105, 1319564), (140, 989673), (210, 659782), (420, 329891)]