218794610

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{1109}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 399999600

約数和(自身を除く): 181204990

約数列:

[1, 2, 5, 10, 109, 181, 218, 362, 545, 905, 1090, 1109, 1810, 2218, 5545, 11090, 19729, 39458, 98645, 120881, 197290, 200729, 241762, 401458, 604405, 1003645, 1208810, 2007290, 21879461, 43758922, 109397305, 218794610]

約数ペア:

[(1, 218794610), (2, 109397305), (5, 43758922), (10, 21879461), (109, 2007290), (181, 1208810), (218, 1003645), (362, 604405), (545, 401458), (905, 241762), (1090, 200729), (1109, 197290), (1810, 120881), (2218, 98645), (5545, 39458), (11090, 19729)]