208020285

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{1103}}^1$

素因数の和:1255

約数の個数: 64

約数和(自身を含む): 406978560

約数和(自身を除く): 198958275

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 99, 127, 135, 165, 297, 381, 495, 635, 1103, 1143, 1397, 1485, 1905, 3309, 3429, 4191, 5515, 5715, 6985, 9927, 12133, 12573, 16545, 17145, 20955, 29781, 36399, 37719, 49635, 60665, 62865, 109197, 140081, 148905, 181995, 188595, 327591, 420243, 545985, 700405, 1260729, 1540891, 1637955, 2101215, 3782187, 4622673, 6303645, 7704455, 13868019, 18910935, 23113365, 41604057, 69340095, 208020285]

約数ペア:

[(1, 208020285), (3, 69340095), (5, 41604057), (9, 23113365), (11, 18910935), (15, 13868019), (27, 7704455), (33, 6303645), (45, 4622673), (55, 3782187), (99, 2101215), (127, 1637955), (135, 1540891), (165, 1260729), (297, 700405), (381, 545985), (495, 420243), (635, 327591), (1103, 188595), (1143, 181995), (1397, 148905), (1485, 140081), (1905, 109197), (3309, 62865), (3429, 60665), (4191, 49635), (5515, 37719), (5715, 36399), (6985, 29781), (9927, 20955), (12133, 17145), (12573, 16545)]