217455080

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^2\times {\mathrm{5657}}^1$

素因数の和:5730

約数の個数: 48

約数和(自身を含む): 505655460

約数和(自身を除く): 288200380

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 961, 1240, 1922, 3844, 4805, 5657, 7688, 9610, 11314, 19220, 22628, 28285, 38440, 45256, 56570, 113140, 175367, 226280, 350734, 701468, 876835, 1402936, 1753670, 3507340, 5436377, 7014680, 10872754, 21745508, 27181885, 43491016, 54363770, 108727540, 217455080]

約数ペア:

[(1, 217455080), (2, 108727540), (4, 54363770), (5, 43491016), (8, 27181885), (10, 21745508), (20, 10872754), (31, 7014680), (40, 5436377), (62, 3507340), (124, 1753670), (155, 1402936), (248, 876835), (310, 701468), (620, 350734), (961, 226280), (1240, 175367), (1922, 113140), (3844, 56570), (4805, 45256), (5657, 38440), (7688, 28285), (9610, 22628), (11314, 19220)]