20136841520

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{158209}}^1$

素因数の和:158302

約数の個数: 80

約数和(自身を含む): 49202044320

約数和(自身を除く): 29065202800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 43, 74, 80, 86, 148, 172, 185, 215, 296, 344, 370, 430, 592, 688, 740, 860, 1480, 1591, 1720, 2960, 3182, 3440, 6364, 7955, 12728, 15910, 25456, 31820, 63640, 127280, 158209, 316418, 632836, 791045, 1265672, 1582090, 2531344, 3164180, 5853733, 6328360, 6802987, 11707466, 12656720, 13605974, 23414932, 27211948, 29268665, 34014935, 46829864, 54423896, 58537330, 68029870, 93659728, 108847792, 117074660, 136059740, 234149320, 251710519, 272119480, 468298640, 503421038, 544238960, 1006842076, 1258552595, 2013684152, 2517105190, 4027368304, 5034210380, 10068420760, 20136841520]

約数ペア:

[(1, 20136841520), (2, 10068420760), (4, 5034210380), (5, 4027368304), (8, 2517105190), (10, 2013684152), (16, 1258552595), (20, 1006842076), (37, 544238960), (40, 503421038), (43, 468298640), (74, 272119480), (80, 251710519), (86, 234149320), (148, 136059740), (172, 117074660), (185, 108847792), (215, 93659728), (296, 68029870), (344, 58537330), (370, 54423896), (430, 46829864), (592, 34014935), (688, 29268665), (740, 27211948), (860, 23414932), (1480, 13605974), (1591, 12656720), (1720, 11707466), (2960, 6802987), (3182, 6328360), (3440, 5853733), (6364, 3164180), (7955, 2531344), (12728, 1582090), (15910, 1265672), (25456, 791045), (31820, 632836), (63640, 316418), (127280, 158209)]