215848180

素因数分解:

$2^2\times 5^1\times {\mathrm{541}}^1\times {\mathrm{19949}}^1$

素因数の和:20499

約数の個数: 24

約数和(自身を含む): 454141800

約数和(自身を除く): 238293620

約数列:

[1, 2, 4, 5, 10, 20, 541, 1082, 2164, 2705, 5410, 10820, 19949, 39898, 79796, 99745, 199490, 398980, 10792409, 21584818, 43169636, 53962045, 107924090, 215848180]

約数ペア:

[(1, 215848180), (2, 107924090), (4, 53962045), (5, 43169636), (10, 21584818), (20, 10792409), (541, 398980), (1082, 199490), (2164, 99745), (2705, 79796), (5410, 39898), (10820, 19949)]