217335080

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{28447}}^1$

素因数の和:28649

約数の個数: 32

約数和(自身を含む): 491581440

約数和(自身を除く): 274246360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 28447, 56894, 113788, 142235, 227576, 284470, 568940, 1137880, 5433377, 10866754, 21733508, 27166885, 43467016, 54333770, 108667540, 217335080]

約数ペア:

[(1, 217335080), (2, 108667540), (4, 54333770), (5, 43467016), (8, 27166885), (10, 21733508), (20, 10866754), (40, 5433377), (191, 1137880), (382, 568940), (764, 284470), (955, 227576), (1528, 142235), (1910, 113788), (3820, 56894), (7640, 28447)]