209247940

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{2741}}^1$

素因数の和:3108

約数の個数: 48

約数和(自身を含む): 480924864

約数和(自身を除く): 271676924

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 347, 694, 1388, 1735, 2741, 3470, 3817, 5482, 6940, 7634, 10964, 13705, 15268, 19085, 27410, 30151, 38170, 54820, 60302, 76340, 120604, 150755, 301510, 603020, 951127, 1902254, 3804508, 4755635, 9511270, 10462397, 19022540, 20924794, 41849588, 52311985, 104623970, 209247940]

約数ペア:

[(1, 209247940), (2, 104623970), (4, 52311985), (5, 41849588), (10, 20924794), (11, 19022540), (20, 10462397), (22, 9511270), (44, 4755635), (55, 3804508), (110, 1902254), (220, 951127), (347, 603020), (694, 301510), (1388, 150755), (1735, 120604), (2741, 76340), (3470, 60302), (3817, 54820), (5482, 38170), (6940, 30151), (7634, 27410), (10964, 19085), (13705, 15268)]