13147780

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:324

約数の個数: 48

約数和(自身を含む): 28740096

約数和(自身を除く): 15592316

約数列:

[1, 2, 4, 5, 10, 20, 47, 71, 94, 142, 188, 197, 235, 284, 355, 394, 470, 710, 788, 940, 985, 1420, 1970, 3337, 3940, 6674, 9259, 13348, 13987, 16685, 18518, 27974, 33370, 37036, 46295, 55948, 66740, 69935, 92590, 139870, 185180, 279740, 657389, 1314778, 2629556, 3286945, 6573890, 13147780]

約数ペア:

[(1, 13147780), (2, 6573890), (4, 3286945), (5, 2629556), (10, 1314778), (20, 657389), (47, 279740), (71, 185180), (94, 139870), (142, 92590), (188, 69935), (197, 66740), (235, 55948), (284, 46295), (355, 37036), (394, 33370), (470, 27974), (710, 18518), (788, 16685), (940, 13987), (985, 13348), (1420, 9259), (1970, 6674), (3337, 3940)]