13456780

素因数分解:

$2^2\times 5^1\times {\mathrm{659}}^1\times {\mathrm{1021}}^1$

素因数の和:1689

約数の個数: 24

約数和(自身を含む): 28329840

約数和(自身を除く): 14873060

約数列:

[1, 2, 4, 5, 10, 20, 659, 1021, 1318, 2042, 2636, 3295, 4084, 5105, 6590, 10210, 13180, 20420, 672839, 1345678, 2691356, 3364195, 6728390, 13456780]

約数ペア:

[(1, 13456780), (2, 6728390), (4, 3364195), (5, 2691356), (10, 1345678), (20, 672839), (659, 20420), (1021, 13180), (1318, 10210), (2042, 6590), (2636, 5105), (3295, 4084)]