210285290

素因数分解:

$2^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{251}}^1\times {\mathrm{421}}^1$

素因数の和:878

約数の個数: 32

約数和(自身を含む): 382838400

約数和(自身を除く): 172553110

約数列:

[1, 2, 5, 10, 199, 251, 398, 421, 502, 842, 995, 1255, 1990, 2105, 2510, 4210, 49949, 83779, 99898, 105671, 167558, 211342, 249745, 418895, 499490, 528355, 837790, 1056710, 21028529, 42057058, 105142645, 210285290]

約数ペア:

[(1, 210285290), (2, 105142645), (5, 42057058), (10, 21028529), (199, 1056710), (251, 837790), (398, 528355), (421, 499490), (502, 418895), (842, 249745), (995, 211342), (1255, 167558), (1990, 105671), (2105, 99898), (2510, 83779), (4210, 49949)]