2555505

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{521}}^1$

素因数の和:641

約数の個数: 24

約数和(自身を含む): 4478760

約数和(自身を除く): 1923255

約数列:

[1, 3, 5, 9, 15, 45, 109, 327, 521, 545, 981, 1563, 1635, 2605, 4689, 4905, 7815, 23445, 56789, 170367, 283945, 511101, 851835, 2555505]

約数ペア:

[(1, 2555505), (3, 851835), (5, 511101), (9, 283945), (15, 170367), (45, 56789), (109, 23445), (327, 7815), (521, 4905), (545, 4689), (981, 2605), (1563, 1635)]