20465872

素因数分解:

$2^4\times 7^1\times {\mathrm{359}}^1\times {\mathrm{509}}^1$

素因数の和:883

約数の個数: 40

約数和(自身を含む): 45532800

約数和(自身を除く): 25066928

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 359, 509, 718, 1018, 1436, 2036, 2513, 2872, 3563, 4072, 5026, 5744, 7126, 8144, 10052, 14252, 20104, 28504, 40208, 57008, 182731, 365462, 730924, 1279117, 1461848, 2558234, 2923696, 5116468, 10232936, 20465872]

約数ペア:

[(1, 20465872), (2, 10232936), (4, 5116468), (7, 2923696), (8, 2558234), (14, 1461848), (16, 1279117), (28, 730924), (56, 365462), (112, 182731), (359, 57008), (509, 40208), (718, 28504), (1018, 20104), (1436, 14252), (2036, 10052), (2513, 8144), (2872, 7126), (3563, 5744), (4072, 5026)]