18924280

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{2477}}^1$

素因数の和:2679

約数の個数: 32

約数和(自身を含む): 42819840

約数和(自身を除く): 23895560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 2477, 3820, 4954, 7640, 9908, 12385, 19816, 24770, 49540, 99080, 473107, 946214, 1892428, 2365535, 3784856, 4731070, 9462140, 18924280]

約数ペア:

[(1, 18924280), (2, 9462140), (4, 4731070), (5, 3784856), (8, 2365535), (10, 1892428), (20, 946214), (40, 473107), (191, 99080), (382, 49540), (764, 24770), (955, 19816), (1528, 12385), (1910, 9908), (2477, 7640), (3820, 4954)]