1290055

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:330

約数の個数: 16

約数和(自身を含む): 1693440

約数和(自身を除く): 403385

約数列:

[1, 5, 13, 65, 89, 223, 445, 1115, 1157, 2899, 5785, 14495, 19847, 99235, 258011, 1290055]

約数ペア:

[(1, 1290055), (5, 258011), (13, 99235), (65, 19847), (89, 14495), (223, 5785), (445, 2899), (1115, 1157)]