204501760

素因数分解:

$2^8\times 5^1\times {\mathrm{197}}^1\times {\mathrm{811}}^1$

素因数の和:1029

約数の個数: 72

約数和(自身を含む): 492939216

約数和(自身を除く): 288437456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 197, 256, 320, 394, 640, 788, 811, 985, 1280, 1576, 1622, 1970, 3152, 3244, 3940, 4055, 6304, 6488, 7880, 8110, 12608, 12976, 15760, 16220, 25216, 25952, 31520, 32440, 50432, 51904, 63040, 64880, 103808, 126080, 129760, 159767, 207616, 252160, 259520, 319534, 519040, 639068, 798835, 1038080, 1278136, 1597670, 2556272, 3195340, 5112544, 6390680, 10225088, 12781360, 20450176, 25562720, 40900352, 51125440, 102250880, 204501760]

約数ペア:

[(1, 204501760), (2, 102250880), (4, 51125440), (5, 40900352), (8, 25562720), (10, 20450176), (16, 12781360), (20, 10225088), (32, 6390680), (40, 5112544), (64, 3195340), (80, 2556272), (128, 1597670), (160, 1278136), (197, 1038080), (256, 798835), (320, 639068), (394, 519040), (640, 319534), (788, 259520), (811, 252160), (985, 207616), (1280, 159767), (1576, 129760), (1622, 126080), (1970, 103808), (3152, 64880), (3244, 63040), (3940, 51904), (4055, 50432), (6304, 32440), (6488, 31520), (7880, 25952), (8110, 25216), (12608, 16220), (12976, 15760)]