161753320

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{887}}^1$

素因数の和:1042

約数の個数: 64

約数和(自身を含む): 375943680

約数和(自身を除く): 214190360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 97, 188, 194, 235, 376, 388, 470, 485, 776, 887, 940, 970, 1774, 1880, 1940, 3548, 3880, 4435, 4559, 7096, 8870, 9118, 17740, 18236, 22795, 35480, 36472, 41689, 45590, 83378, 86039, 91180, 166756, 172078, 182360, 208445, 333512, 344156, 416890, 430195, 688312, 833780, 860390, 1667560, 1720780, 3441560, 4043833, 8087666, 16175332, 20219165, 32350664, 40438330, 80876660, 161753320]

約数ペア:

[(1, 161753320), (2, 80876660), (4, 40438330), (5, 32350664), (8, 20219165), (10, 16175332), (20, 8087666), (40, 4043833), (47, 3441560), (94, 1720780), (97, 1667560), (188, 860390), (194, 833780), (235, 688312), (376, 430195), (388, 416890), (470, 344156), (485, 333512), (776, 208445), (887, 182360), (940, 172078), (970, 166756), (1774, 91180), (1880, 86039), (1940, 83378), (3548, 45590), (3880, 41689), (4435, 36472), (4559, 35480), (7096, 22795), (8870, 18236), (9118, 17740)]