1995245

素因数分解:

$5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{523}}^1$

素因数の和:644

約数の個数: 16

約数和(自身を含む): 2766720

約数和(自身を除く): 771475

約数列:

[1, 5, 7, 35, 109, 523, 545, 763, 2615, 3661, 3815, 18305, 57007, 285035, 399049, 1995245]

約数ペア:

[(1, 1995245), (5, 399049), (7, 285035), (35, 57007), (109, 18305), (523, 3815), (545, 3661), (763, 2615)]