1989291260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{475907}}^1$

素因数の和:475946

約数の個数: 48

約数和(自身を含む): 4797152640

約数和(自身を除く): 2807861380

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 38, 44, 55, 76, 95, 110, 190, 209, 220, 380, 418, 836, 1045, 2090, 4180, 475907, 951814, 1903628, 2379535, 4759070, 5234977, 9042233, 9518140, 10469954, 18084466, 20939908, 26174885, 36168932, 45211165, 52349770, 90422330, 99464563, 104699540, 180844660, 198929126, 397858252, 497322815, 994645630, 1989291260]

約数ペア:

[(1, 1989291260), (2, 994645630), (4, 497322815), (5, 397858252), (10, 198929126), (11, 180844660), (19, 104699540), (20, 99464563), (22, 90422330), (38, 52349770), (44, 45211165), (55, 36168932), (76, 26174885), (95, 20939908), (110, 18084466), (190, 10469954), (209, 9518140), (220, 9042233), (380, 5234977), (418, 4759070), (836, 2379535), (1045, 1903628), (2090, 951814), (4180, 475907)]