20958290

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1\times {\mathrm{311}}^1$

素因数の和:634

約数の個数: 32

約数和(自身を含む): 39626496

約数和(自身を除く): 18668206

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 293, 311, 586, 622, 1465, 1555, 2930, 3110, 6739, 7153, 13478, 14306, 33695, 35765, 67390, 71530, 91123, 182246, 455615, 911230, 2095829, 4191658, 10479145, 20958290]

約数ペア:

[(1, 20958290), (2, 10479145), (5, 4191658), (10, 2095829), (23, 911230), (46, 455615), (115, 182246), (230, 91123), (293, 71530), (311, 67390), (586, 35765), (622, 33695), (1465, 14306), (1555, 13478), (2930, 7153), (3110, 6739)]