20028340

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4373}}^1$

素因数の和:4611

約数の個数: 24

約数和(自身を含む): 42252840

約数和(自身を除く): 22224500

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4373, 4580, 8746, 17492, 21865, 43730, 87460, 1001417, 2002834, 4005668, 5007085, 10014170, 20028340]

約数ペア:

[(1, 20028340), (2, 10014170), (4, 5007085), (5, 4005668), (10, 2002834), (20, 1001417), (229, 87460), (458, 43730), (916, 21865), (1145, 17492), (2290, 8746), (4373, 4580)]