12398920

素因数分解:

$2^3\times 5^1\times {\mathrm{401}}^1\times {\mathrm{773}}^1$

素因数の和:1185

約数の個数: 32

約数和(自身を含む): 28003320

約数和(自身を除く): 15604400

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 401, 773, 802, 1546, 1604, 2005, 3092, 3208, 3865, 4010, 6184, 7730, 8020, 15460, 16040, 30920, 309973, 619946, 1239892, 1549865, 2479784, 3099730, 6199460, 12398920]

約数ペア:

[(1, 12398920), (2, 6199460), (4, 3099730), (5, 2479784), (8, 1549865), (10, 1239892), (20, 619946), (40, 309973), (401, 30920), (773, 16040), (802, 15460), (1546, 8020), (1604, 7730), (2005, 6184), (3092, 4010), (3208, 3865)]