920947720

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{2903}}^1$

素因数の和:3035

約数の個数: 128

約数和(自身を含む): 2609418240

約数和(自身を除く): 1688470520

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 103, 110, 140, 154, 206, 220, 280, 308, 385, 412, 440, 515, 616, 721, 770, 824, 1030, 1133, 1442, 1540, 2060, 2266, 2884, 2903, 3080, 3605, 4120, 4532, 5665, 5768, 5806, 7210, 7931, 9064, 11330, 11612, 14420, 14515, 15862, 20321, 22660, 23224, 28840, 29030, 31724, 31933, 39655, 40642, 45320, 58060, 63448, 63866, 79310, 81284, 101605, 116120, 127732, 158620, 159665, 162568, 203210, 223531, 255464, 299009, 317240, 319330, 406420, 447062, 598018, 638660, 812840, 894124, 1117655, 1196036, 1277320, 1495045, 1788248, 2093063, 2235310, 2392072, 2990090, 3289099, 4186126, 4470620, 5980180, 6578198, 8372252, 8941240, 10465315, 11960360, 13156396, 16445495, 16744504, 20930630, 23023693, 26312792, 32890990, 41861260, 46047386, 65781980, 83722520, 92094772, 115118465, 131563960, 184189544, 230236930, 460473860, 920947720]

約数ペア:

[(1, 920947720), (2, 460473860), (4, 230236930), (5, 184189544), (7, 131563960), (8, 115118465), (10, 92094772), (11, 83722520), (14, 65781980), (20, 46047386), (22, 41861260), (28, 32890990), (35, 26312792), (40, 23023693), (44, 20930630), (55, 16744504), (56, 16445495), (70, 13156396), (77, 11960360), (88, 10465315), (103, 8941240), (110, 8372252), (140, 6578198), (154, 5980180), (206, 4470620), (220, 4186126), (280, 3289099), (308, 2990090), (385, 2392072), (412, 2235310), (440, 2093063), (515, 1788248), (616, 1495045), (721, 1277320), (770, 1196036), (824, 1117655), (1030, 894124), (1133, 812840), (1442, 638660), (1540, 598018), (2060, 447062), (2266, 406420), (2884, 319330), (2903, 317240), (3080, 299009), (3605, 255464), (4120, 223531), (4532, 203210), (5665, 162568), (5768, 159665), (5806, 158620), (7210, 127732), (7931, 116120), (9064, 101605), (11330, 81284), (11612, 79310), (14420, 63866), (14515, 63448), (15862, 58060), (20321, 45320), (22660, 40642), (23224, 39655), (28840, 31933), (29030, 31724)]