51203440

素因数分解:

$2^4\times 5^1\times {\mathrm{640043}}^1$

素因数の和:640056

約数の個数: 20

約数和(自身を含む): 119048184

約数和(自身を除く): 67844744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 640043, 1280086, 2560172, 3200215, 5120344, 6400430, 10240688, 12800860, 25601720, 51203440]

約数ペア:

[(1, 51203440), (2, 25601720), (4, 12800860), (5, 10240688), (8, 6400430), (10, 5120344), (16, 3200215), (20, 2560172), (40, 1280086), (80, 640043)]