211293490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{409}}^1\times {\mathrm{2719}}^1$

素因数の和:3154

約数の個数: 32

約数和(自身を含む): 401472000

約数和(自身を除く): 190178510

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 409, 818, 2045, 2719, 4090, 5438, 7771, 13595, 15542, 27190, 38855, 51661, 77710, 103322, 258305, 516610, 1112071, 2224142, 5560355, 11120710, 21129349, 42258698, 105646745, 211293490]

約数ペア:

[(1, 211293490), (2, 105646745), (5, 42258698), (10, 21129349), (19, 11120710), (38, 5560355), (95, 2224142), (190, 1112071), (409, 516610), (818, 258305), (2045, 103322), (2719, 77710), (4090, 51661), (5438, 38855), (7771, 27190), (13595, 15542)]