19528180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139487}}^1$

素因数の和:139503

約数の個数: 24

約数和(自身を含む): 46867968

約数和(自身を除く): 27339788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 139487, 278974, 557948, 697435, 976409, 1394870, 1952818, 2789740, 3905636, 4882045, 9764090, 19528180]

約数ペア:

[(1, 19528180), (2, 9764090), (4, 4882045), (5, 3905636), (7, 2789740), (10, 1952818), (14, 1394870), (20, 976409), (28, 697435), (35, 557948), (70, 278974), (140, 139487)]