16521999040

素因数分解:

$2^6\times 5^1\times {\mathrm{647}}^1\times {\mathrm{79801}}^1$

素因数の和:80465

約数の個数: 56

約数和(自身を含む): 39404312352

約数和(自身を除く): 22882313312

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 647, 1294, 2588, 3235, 5176, 6470, 10352, 12940, 20704, 25880, 41408, 51760, 79801, 103520, 159602, 207040, 319204, 399005, 638408, 798010, 1276816, 1596020, 2553632, 3192040, 5107264, 6384080, 12768160, 25536320, 51631247, 103262494, 206524988, 258156235, 413049976, 516312470, 826099952, 1032624940, 1652199904, 2065249880, 3304399808, 4130499760, 8260999520, 16521999040]

約数ペア:

[(1, 16521999040), (2, 8260999520), (4, 4130499760), (5, 3304399808), (8, 2065249880), (10, 1652199904), (16, 1032624940), (20, 826099952), (32, 516312470), (40, 413049976), (64, 258156235), (80, 206524988), (160, 103262494), (320, 51631247), (647, 25536320), (1294, 12768160), (2588, 6384080), (3235, 5107264), (5176, 3192040), (6470, 2553632), (10352, 1596020), (12940, 1276816), (20704, 798010), (25880, 638408), (41408, 399005), (51760, 319204), (79801, 207040), (103520, 159602)]