78834140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 144

約数和(自身を含む): 215115264

約数和(自身を除く): 136281124

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 71, 77, 98, 103, 110, 140, 142, 154, 196, 206, 220, 245, 284, 308, 355, 385, 412, 490, 497, 515, 539, 710, 721, 770, 781, 980, 994, 1030, 1078, 1133, 1420, 1442, 1540, 1562, 1988, 2060, 2156, 2266, 2485, 2695, 2884, 3124, 3479, 3605, 3905, 4532, 4970, 5047, 5390, 5467, 5665, 6958, 7210, 7313, 7810, 7931, 9940, 10094, 10780, 10934, 11330, 13916, 14420, 14626, 15620, 15862, 17395, 20188, 21868, 22660, 25235, 27335, 29252, 31724, 34790, 36565, 38269, 39655, 50470, 51191, 54670, 55517, 69580, 73130, 76538, 79310, 80443, 100940, 102382, 109340, 111034, 146260, 153076, 158620, 160886, 191345, 204764, 222068, 255955, 277585, 321772, 358337, 382690, 402215, 511910, 555170, 563101, 716674, 765380, 804430, 1023820, 1110340, 1126202, 1433348, 1608860, 1791685, 2252404, 2815505, 3583370, 3941707, 5631010, 7166740, 7883414, 11262020, 15766828, 19708535, 39417070, 78834140]

約数ペア:

[(1, 78834140), (2, 39417070), (4, 19708535), (5, 15766828), (7, 11262020), (10, 7883414), (11, 7166740), (14, 5631010), (20, 3941707), (22, 3583370), (28, 2815505), (35, 2252404), (44, 1791685), (49, 1608860), (55, 1433348), (70, 1126202), (71, 1110340), (77, 1023820), (98, 804430), (103, 765380), (110, 716674), (140, 563101), (142, 555170), (154, 511910), (196, 402215), (206, 382690), (220, 358337), (245, 321772), (284, 277585), (308, 255955), (355, 222068), (385, 204764), (412, 191345), (490, 160886), (497, 158620), (515, 153076), (539, 146260), (710, 111034), (721, 109340), (770, 102382), (781, 100940), (980, 80443), (994, 79310), (1030, 76538), (1078, 73130), (1133, 69580), (1420, 55517), (1442, 54670), (1540, 51191), (1562, 50470), (1988, 39655), (2060, 38269), (2156, 36565), (2266, 34790), (2485, 31724), (2695, 29252), (2884, 27335), (3124, 25235), (3479, 22660), (3605, 21868), (3905, 20188), (4532, 17395), (4970, 15862), (5047, 15620), (5390, 14626), (5467, 14420), (5665, 13916), (6958, 11330), (7210, 10934), (7313, 10780), (7810, 10094), (7931, 9940)]