2009013919240

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{460783009}}^1$

素因数の和:460783129

約数の個数: 32

約数和(自身を含む): 4561751799000

約数和(自身を除く): 2552737879760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 460783009, 921566018, 1843132036, 2303915045, 3686264072, 4607830090, 9215660180, 18431320360, 50225347981, 100450695962, 200901391924, 251126739905, 401802783848, 502253479810, 1004506959620, 2009013919240]

約数ペア:

[(1, 2009013919240), (2, 1004506959620), (4, 502253479810), (5, 401802783848), (8, 251126739905), (10, 200901391924), (20, 100450695962), (40, 50225347981), (109, 18431320360), (218, 9215660180), (436, 4607830090), (545, 3686264072), (872, 2303915045), (1090, 1843132036), (2180, 921566018), (4360, 460783009)]