20618450

素因数分解:

$2^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:347

約数の個数: 48

約数和(自身を含む): 41140224

約数和(自身を除く): 20521774

約数列:

[1, 2, 5, 10, 17, 25, 34, 50, 85, 127, 170, 191, 254, 382, 425, 635, 850, 955, 1270, 1910, 2159, 3175, 3247, 4318, 4775, 6350, 6494, 9550, 10795, 16235, 21590, 24257, 32470, 48514, 53975, 81175, 107950, 121285, 162350, 242570, 412369, 606425, 824738, 1212850, 2061845, 4123690, 10309225, 20618450]

約数ペア:

[(1, 20618450), (2, 10309225), (5, 4123690), (10, 2061845), (17, 1212850), (25, 824738), (34, 606425), (50, 412369), (85, 242570), (127, 162350), (170, 121285), (191, 107950), (254, 81175), (382, 53975), (425, 48514), (635, 32470), (850, 24257), (955, 21590), (1270, 16235), (1910, 10795), (2159, 9550), (3175, 6494), (3247, 6350), (4318, 4775)]