20315092

素因数分解:

$2^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{359}}^1$

素因数の和:460

約数の個数: 48

約数和(自身を含む): 42577920

約数和(自身を除く): 22262828

約数列:

[1, 2, 4, 7, 14, 28, 43, 47, 86, 94, 172, 188, 301, 329, 359, 602, 658, 718, 1204, 1316, 1436, 2021, 2513, 4042, 5026, 8084, 10052, 14147, 15437, 16873, 28294, 30874, 33746, 56588, 61748, 67492, 108059, 118111, 216118, 236222, 432236, 472444, 725539, 1451078, 2902156, 5078773, 10157546, 20315092]

約数ペア:

[(1, 20315092), (2, 10157546), (4, 5078773), (7, 2902156), (14, 1451078), (28, 725539), (43, 472444), (47, 432236), (86, 236222), (94, 216118), (172, 118111), (188, 108059), (301, 67492), (329, 61748), (359, 56588), (602, 33746), (658, 30874), (718, 28294), (1204, 16873), (1316, 15437), (1436, 14147), (2021, 10052), (2513, 8084), (4042, 5026)]