38689420

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{97}}^1$

素因数の和:168

約数の個数: 144

約数和(自身を含む): 106983072

約数和(自身を除く): 68293652

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 37, 44, 49, 55, 70, 74, 77, 97, 98, 110, 140, 148, 154, 185, 194, 196, 220, 245, 259, 308, 370, 385, 388, 407, 485, 490, 518, 539, 679, 740, 770, 814, 970, 980, 1036, 1067, 1078, 1295, 1358, 1540, 1628, 1813, 1940, 2035, 2134, 2156, 2590, 2695, 2716, 2849, 3395, 3589, 3626, 4070, 4268, 4753, 5180, 5335, 5390, 5698, 6790, 7178, 7252, 7469, 8140, 9065, 9506, 10670, 10780, 11396, 13580, 14245, 14356, 14938, 17945, 18130, 19012, 19943, 21340, 23765, 25123, 28490, 29876, 35890, 36260, 37345, 39479, 39886, 47530, 50246, 52283, 56980, 71780, 74690, 78958, 79772, 95060, 99715, 100492, 104566, 125615, 149380, 157916, 175861, 197395, 199430, 209132, 251230, 261415, 276353, 351722, 394790, 398860, 502460, 522830, 552706, 703444, 789580, 879305, 1045660, 1105412, 1381765, 1758610, 1934471, 2763530, 3517220, 3868942, 5527060, 7737884, 9672355, 19344710, 38689420]

約数ペア:

[(1, 38689420), (2, 19344710), (4, 9672355), (5, 7737884), (7, 5527060), (10, 3868942), (11, 3517220), (14, 2763530), (20, 1934471), (22, 1758610), (28, 1381765), (35, 1105412), (37, 1045660), (44, 879305), (49, 789580), (55, 703444), (70, 552706), (74, 522830), (77, 502460), (97, 398860), (98, 394790), (110, 351722), (140, 276353), (148, 261415), (154, 251230), (185, 209132), (194, 199430), (196, 197395), (220, 175861), (245, 157916), (259, 149380), (308, 125615), (370, 104566), (385, 100492), (388, 99715), (407, 95060), (485, 79772), (490, 78958), (518, 74690), (539, 71780), (679, 56980), (740, 52283), (770, 50246), (814, 47530), (970, 39886), (980, 39479), (1036, 37345), (1067, 36260), (1078, 35890), (1295, 29876), (1358, 28490), (1540, 25123), (1628, 23765), (1813, 21340), (1940, 19943), (2035, 19012), (2134, 18130), (2156, 17945), (2590, 14938), (2695, 14356), (2716, 14245), (2849, 13580), (3395, 11396), (3589, 10780), (3626, 10670), (4070, 9506), (4268, 9065), (4753, 8140), (5180, 7469), (5335, 7252), (5390, 7178), (5698, 6790)]