2147180

素因数分解:

$2^2\times 5^1\times 7^3\times {\mathrm{313}}^1$

素因数の和:343

約数の個数: 48

約数和(自身を含む): 5275200

約数和(自身を除く): 3128020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 313, 343, 490, 626, 686, 980, 1252, 1372, 1565, 1715, 2191, 3130, 3430, 4382, 6260, 6860, 8764, 10955, 15337, 21910, 30674, 43820, 61348, 76685, 107359, 153370, 214718, 306740, 429436, 536795, 1073590, 2147180]

約数ペア:

[(1, 2147180), (2, 1073590), (4, 536795), (5, 429436), (7, 306740), (10, 214718), (14, 153370), (20, 107359), (28, 76685), (35, 61348), (49, 43820), (70, 30674), (98, 21910), (140, 15337), (196, 10955), (245, 8764), (313, 6860), (343, 6260), (490, 4382), (626, 3430), (686, 3130), (980, 2191), (1252, 1715), (1372, 1565)]