280485

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{271}}^1$

素因数の和:305

約数の個数: 24

約数和(自身を含む): 509184

約数和(自身を除く): 228699

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 271, 345, 813, 1035, 1355, 2439, 4065, 6233, 12195, 18699, 31165, 56097, 93495, 280485]

約数ペア:

[(1, 280485), (3, 93495), (5, 56097), (9, 31165), (15, 18699), (23, 12195), (45, 6233), (69, 4065), (115, 2439), (207, 1355), (271, 1035), (345, 813)]