1555504120

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{197}}^1\times {\mathrm{1811}}^1$

素因数の和:2128

約数の個数: 64

約数和(自身を含む): 3551882400

約数和(自身を除く): 1996378280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 197, 218, 394, 436, 545, 788, 872, 985, 1090, 1576, 1811, 1970, 2180, 3622, 3940, 4360, 7244, 7880, 9055, 14488, 18110, 21473, 36220, 42946, 72440, 85892, 107365, 171784, 197399, 214730, 356767, 394798, 429460, 713534, 789596, 858920, 986995, 1427068, 1579192, 1783835, 1973990, 2854136, 3567670, 3947980, 7135340, 7895960, 14270680, 38887603, 77775206, 155550412, 194438015, 311100824, 388876030, 777752060, 1555504120]

約数ペア:

[(1, 1555504120), (2, 777752060), (4, 388876030), (5, 311100824), (8, 194438015), (10, 155550412), (20, 77775206), (40, 38887603), (109, 14270680), (197, 7895960), (218, 7135340), (394, 3947980), (436, 3567670), (545, 2854136), (788, 1973990), (872, 1783835), (985, 1579192), (1090, 1427068), (1576, 986995), (1811, 858920), (1970, 789596), (2180, 713534), (3622, 429460), (3940, 394798), (4360, 356767), (7244, 214730), (7880, 197399), (9055, 171784), (14488, 107365), (18110, 85892), (21473, 72440), (36220, 42946)]