18331180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{1031}}^1$

素因数の和:1174

約数の個数: 48

約数和(自身を含む): 44384256

約数和(自身を除く): 26053076

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 127, 140, 254, 508, 635, 889, 1031, 1270, 1778, 2062, 2540, 3556, 4124, 4445, 5155, 7217, 8890, 10310, 14434, 17780, 20620, 28868, 36085, 72170, 130937, 144340, 261874, 523748, 654685, 916559, 1309370, 1833118, 2618740, 3666236, 4582795, 9165590, 18331180]

約数ペア:

[(1, 18331180), (2, 9165590), (4, 4582795), (5, 3666236), (7, 2618740), (10, 1833118), (14, 1309370), (20, 916559), (28, 654685), (35, 523748), (70, 261874), (127, 144340), (140, 130937), (254, 72170), (508, 36085), (635, 28868), (889, 20620), (1031, 17780), (1270, 14434), (1778, 10310), (2062, 8890), (2540, 7217), (3556, 5155), (4124, 4445)]