20796611275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{251}}^1\times {\mathrm{479}}^1$

素因数の和:805

約数の個数: 96

約数和(自身を含む): 30778030080

約数和(自身を除く): 9981418805

約数列:

[1, 5, 11, 17, 25, 37, 55, 85, 185, 187, 251, 275, 407, 425, 479, 629, 925, 935, 1255, 2035, 2395, 2761, 3145, 4267, 4675, 5269, 6275, 6919, 8143, 9287, 10175, 11975, 13805, 15725, 17723, 21335, 26345, 34595, 40715, 46435, 46937, 69025, 88615, 89573, 102157, 106675, 120229, 131725, 157879, 172975, 194953, 203575, 232175, 234685, 301291, 443075, 447865, 510785, 601145, 789395, 974765, 1173425, 1322519, 1506455, 1736669, 2043893, 2239325, 2553925, 3005725, 3314201, 3946975, 4448473, 4873825, 6612595, 7532275, 8683345, 10219465, 16571005, 22242365, 22482823, 33062975, 43416725, 48933203, 51097325, 75624041, 82855025, 111211825, 112414115, 244666015, 378120205, 562070575, 831864451, 1223330075, 1890601025, 4159322255, 20796611275]

約数ペア:

[(1, 20796611275), (5, 4159322255), (11, 1890601025), (17, 1223330075), (25, 831864451), (37, 562070575), (55, 378120205), (85, 244666015), (185, 112414115), (187, 111211825), (251, 82855025), (275, 75624041), (407, 51097325), (425, 48933203), (479, 43416725), (629, 33062975), (925, 22482823), (935, 22242365), (1255, 16571005), (2035, 10219465), (2395, 8683345), (2761, 7532275), (3145, 6612595), (4267, 4873825), (4675, 4448473), (5269, 3946975), (6275, 3314201), (6919, 3005725), (8143, 2553925), (9287, 2239325), (10175, 2043893), (11975, 1736669), (13805, 1506455), (15725, 1322519), (17723, 1173425), (21335, 974765), (26345, 789395), (34595, 601145), (40715, 510785), (46435, 447865), (46937, 443075), (69025, 301291), (88615, 234685), (89573, 232175), (102157, 203575), (106675, 194953), (120229, 172975), (131725, 157879)]