18068260

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{179}}^1$

素因数の和:305

約数の個数: 72

約数和(自身を含む): 44815680

約数和(自身を除く): 26747420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 103, 140, 179, 196, 206, 245, 358, 412, 490, 515, 716, 721, 895, 980, 1030, 1253, 1442, 1790, 2060, 2506, 2884, 3580, 3605, 5012, 5047, 6265, 7210, 8771, 10094, 12530, 14420, 17542, 18437, 20188, 25060, 25235, 35084, 36874, 43855, 50470, 73748, 87710, 92185, 100940, 129059, 175420, 184370, 258118, 368740, 516236, 645295, 903413, 1290590, 1806826, 2581180, 3613652, 4517065, 9034130, 18068260]

約数ペア:

[(1, 18068260), (2, 9034130), (4, 4517065), (5, 3613652), (7, 2581180), (10, 1806826), (14, 1290590), (20, 903413), (28, 645295), (35, 516236), (49, 368740), (70, 258118), (98, 184370), (103, 175420), (140, 129059), (179, 100940), (196, 92185), (206, 87710), (245, 73748), (358, 50470), (412, 43855), (490, 36874), (515, 35084), (716, 25235), (721, 25060), (895, 20188), (980, 18437), (1030, 17542), (1253, 14420), (1442, 12530), (1790, 10094), (2060, 8771), (2506, 7210), (2884, 6265), (3580, 5047), (3605, 5012)]