90572720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{821}}^1$

素因数の和:1038

約数の個数: 80

約数和(自身を含む): 242180928

約数和(自身を除く): 151608208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 197, 280, 394, 560, 788, 821, 985, 1379, 1576, 1642, 1970, 2758, 3152, 3284, 3940, 4105, 5516, 5747, 6568, 6895, 7880, 8210, 11032, 11494, 13136, 13790, 15760, 16420, 22064, 22988, 27580, 28735, 32840, 45976, 55160, 57470, 65680, 91952, 110320, 114940, 161737, 229880, 323474, 459760, 646948, 808685, 1132159, 1293896, 1617370, 2264318, 2587792, 3234740, 4528636, 5660795, 6469480, 9057272, 11321590, 12938960, 18114544, 22643180, 45286360, 90572720]

約数ペア:

[(1, 90572720), (2, 45286360), (4, 22643180), (5, 18114544), (7, 12938960), (8, 11321590), (10, 9057272), (14, 6469480), (16, 5660795), (20, 4528636), (28, 3234740), (35, 2587792), (40, 2264318), (56, 1617370), (70, 1293896), (80, 1132159), (112, 808685), (140, 646948), (197, 459760), (280, 323474), (394, 229880), (560, 161737), (788, 114940), (821, 110320), (985, 91952), (1379, 65680), (1576, 57470), (1642, 55160), (1970, 45976), (2758, 32840), (3152, 28735), (3284, 27580), (3940, 22988), (4105, 22064), (5516, 16420), (5747, 15760), (6568, 13790), (6895, 13136), (7880, 11494), (8210, 11032)]