20145030880

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{211}}^1\times {\mathrm{233}}^1$

素因数の和:669

約数の個数: 192

約数和(自身を含む): 51980056128

約数和(自身を除く): 31835025248

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 80, 104, 130, 160, 197, 208, 211, 233, 260, 394, 416, 422, 466, 520, 788, 844, 932, 985, 1040, 1055, 1165, 1576, 1688, 1864, 1970, 2080, 2110, 2330, 2561, 2743, 3029, 3152, 3376, 3728, 3940, 4220, 4660, 5122, 5486, 6058, 6304, 6752, 7456, 7880, 8440, 9320, 10244, 10972, 12116, 12805, 13715, 15145, 15760, 16880, 18640, 20488, 21944, 24232, 25610, 27430, 30290, 31520, 33760, 37280, 40976, 41567, 43888, 45901, 48464, 49163, 51220, 54860, 60580, 81952, 83134, 87776, 91802, 96928, 98326, 102440, 109720, 121160, 166268, 183604, 196652, 204880, 207835, 219440, 229505, 242320, 245815, 332536, 367208, 393304, 409760, 415670, 438880, 459010, 484640, 491630, 540371, 596713, 639119, 665072, 734416, 786608, 831340, 918020, 983260, 1080742, 1193426, 1278238, 1330144, 1468832, 1573216, 1662680, 1836040, 1966520, 2161484, 2386852, 2556476, 2701855, 2983565, 3195595, 3325360, 3672080, 3933040, 4322968, 4773704, 5112952, 5403710, 5967130, 6391190, 6650720, 7344160, 7866080, 8645936, 9547408, 9685111, 10225904, 10807420, 11934260, 12782380, 17291872, 19094816, 19370222, 20451808, 21614840, 23868520, 25564760, 38740444, 43229680, 47737040, 48425555, 51129520, 77480888, 86459360, 95474080, 96851110, 102259040, 125906443, 154961776, 193702220, 251812886, 309923552, 387404440, 503625772, 629532215, 774808880, 1007251544, 1259064430, 1549617760, 2014503088, 2518128860, 4029006176, 5036257720, 10072515440, 20145030880]

約数ペア:

[(1, 20145030880), (2, 10072515440), (4, 5036257720), (5, 4029006176), (8, 2518128860), (10, 2014503088), (13, 1549617760), (16, 1259064430), (20, 1007251544), (26, 774808880), (32, 629532215), (40, 503625772), (52, 387404440), (65, 309923552), (80, 251812886), (104, 193702220), (130, 154961776), (160, 125906443), (197, 102259040), (208, 96851110), (211, 95474080), (233, 86459360), (260, 77480888), (394, 51129520), (416, 48425555), (422, 47737040), (466, 43229680), (520, 38740444), (788, 25564760), (844, 23868520), (932, 21614840), (985, 20451808), (1040, 19370222), (1055, 19094816), (1165, 17291872), (1576, 12782380), (1688, 11934260), (1864, 10807420), (1970, 10225904), (2080, 9685111), (2110, 9547408), (2330, 8645936), (2561, 7866080), (2743, 7344160), (3029, 6650720), (3152, 6391190), (3376, 5967130), (3728, 5403710), (3940, 5112952), (4220, 4773704), (4660, 4322968), (5122, 3933040), (5486, 3672080), (6058, 3325360), (6304, 3195595), (6752, 2983565), (7456, 2701855), (7880, 2556476), (8440, 2386852), (9320, 2161484), (10244, 1966520), (10972, 1836040), (12116, 1662680), (12805, 1573216), (13715, 1468832), (15145, 1330144), (15760, 1278238), (16880, 1193426), (18640, 1080742), (20488, 983260), (21944, 918020), (24232, 831340), (25610, 786608), (27430, 734416), (30290, 665072), (31520, 639119), (33760, 596713), (37280, 540371), (40976, 491630), (41567, 484640), (43888, 459010), (45901, 438880), (48464, 415670), (49163, 409760), (51220, 393304), (54860, 367208), (60580, 332536), (81952, 245815), (83134, 242320), (87776, 229505), (91802, 219440), (96928, 207835), (98326, 204880), (102440, 196652), (109720, 183604), (121160, 166268)]