19026260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{439}}^1$

素因数の和:656

約数の個数: 48

約数和(自身を含む): 43908480

約数和(自身を除く): 24882220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 394, 439, 788, 878, 985, 1756, 1970, 2167, 2195, 3940, 4334, 4390, 4829, 8668, 8780, 9658, 10835, 19316, 21670, 24145, 43340, 48290, 86483, 96580, 172966, 345932, 432415, 864830, 951313, 1729660, 1902626, 3805252, 4756565, 9513130, 19026260]

約数ペア:

[(1, 19026260), (2, 9513130), (4, 4756565), (5, 3805252), (10, 1902626), (11, 1729660), (20, 951313), (22, 864830), (44, 432415), (55, 345932), (110, 172966), (197, 96580), (220, 86483), (394, 48290), (439, 43340), (788, 24145), (878, 21670), (985, 19316), (1756, 10835), (1970, 9658), (2167, 8780), (2195, 8668), (3940, 4829), (4334, 4390)]