20208105

素因数分解:

$3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{229}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 36812880

約数和(自身を除く): 16604775

約数列:

[1, 3, 5, 9, 15, 37, 45, 53, 111, 159, 185, 229, 265, 333, 477, 555, 687, 795, 1145, 1665, 1961, 2061, 2385, 3435, 5883, 8473, 9805, 10305, 12137, 17649, 25419, 29415, 36411, 42365, 60685, 76257, 88245, 109233, 127095, 182055, 381285, 449069, 546165, 1347207, 2245345, 4041621, 6736035, 20208105]

約数ペア:

[(1, 20208105), (3, 6736035), (5, 4041621), (9, 2245345), (15, 1347207), (37, 546165), (45, 449069), (53, 381285), (111, 182055), (159, 127095), (185, 109233), (229, 88245), (265, 76257), (333, 60685), (477, 42365), (555, 36411), (687, 29415), (795, 25419), (1145, 17649), (1665, 12137), (1961, 10305), (2061, 9805), (2385, 8473), (3435, 5883)]