227968520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{438401}}^1$

素因数の和:438425

約数の個数: 32

約数和(自身を含む): 552386520

約数和(自身を除く): 324418000

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 438401, 876802, 1753604, 2192005, 3507208, 4384010, 5699213, 8768020, 11398426, 17536040, 22796852, 28496065, 45593704, 56992130, 113984260, 227968520]

約数ペア:

[(1, 227968520), (2, 113984260), (4, 56992130), (5, 45593704), (8, 28496065), (10, 22796852), (13, 17536040), (20, 11398426), (26, 8768020), (40, 5699213), (52, 4384010), (65, 3507208), (104, 2192005), (130, 1753604), (260, 876802), (520, 438401)]