18221300

素因数分解:

$2^2\times 5^2\times {\mathrm{257}}^1\times {\mathrm{709}}^1$

素因数の和:980

約数の個数: 36

約数和(自身を含む): 39750060

約数和(自身を除く): 21528760

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 257, 514, 709, 1028, 1285, 1418, 2570, 2836, 3545, 5140, 6425, 7090, 12850, 14180, 17725, 25700, 35450, 70900, 182213, 364426, 728852, 911065, 1822130, 3644260, 4555325, 9110650, 18221300]

約数ペア:

[(1, 18221300), (2, 9110650), (4, 4555325), (5, 3644260), (10, 1822130), (20, 911065), (25, 728852), (50, 364426), (100, 182213), (257, 70900), (514, 35450), (709, 25700), (1028, 17725), (1285, 14180), (1418, 12850), (2570, 7090), (2836, 6425), (3545, 5140)]