25312280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{90401}}^1$

素因数の和:90419

約数の個数: 32

約数和(自身を含む): 65089440

約数和(自身を除く): 39777160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 90401, 180802, 361604, 452005, 632807, 723208, 904010, 1265614, 1808020, 2531228, 3164035, 3616040, 5062456, 6328070, 12656140, 25312280]

約数ペア:

[(1, 25312280), (2, 12656140), (4, 6328070), (5, 5062456), (7, 3616040), (8, 3164035), (10, 2531228), (14, 1808020), (20, 1265614), (28, 904010), (35, 723208), (40, 632807), (56, 452005), (70, 361604), (140, 180802), (280, 90401)]