343989580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{7937}}^1$

素因数の和:8154

約数の個数: 48

約数和(自身を含む): 792148896

約数和(自身を除く): 448159316

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 788, 985, 1970, 2167, 3940, 4334, 7937, 8668, 10835, 15874, 21670, 31748, 39685, 43340, 79370, 87307, 158740, 174614, 349228, 436535, 873070, 1563589, 1746140, 3127178, 6254356, 7817945, 15635890, 17199479, 31271780, 34398958, 68797916, 85997395, 171994790, 343989580]

約数ペア:

[(1, 343989580), (2, 171994790), (4, 85997395), (5, 68797916), (10, 34398958), (11, 31271780), (20, 17199479), (22, 15635890), (44, 7817945), (55, 6254356), (110, 3127178), (197, 1746140), (220, 1563589), (394, 873070), (788, 436535), (985, 349228), (1970, 174614), (2167, 158740), (3940, 87307), (4334, 79370), (7937, 43340), (8668, 39685), (10835, 31748), (15874, 21670)]