639497810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{2003}}^1\times {\mathrm{4561}}^1$

素因数の和:6578

約数の個数: 32

約数和(自身を含む): 1316483712

約数和(自身を除く): 676985902

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 2003, 4006, 4561, 9122, 10015, 14021, 20030, 22805, 28042, 31927, 45610, 63854, 70105, 140210, 159635, 319270, 9135683, 18271366, 45678415, 63949781, 91356830, 127899562, 319748905, 639497810]

約数ペア:

[(1, 639497810), (2, 319748905), (5, 127899562), (7, 91356830), (10, 63949781), (14, 45678415), (35, 18271366), (70, 9135683), (2003, 319270), (4006, 159635), (4561, 140210), (9122, 70105), (10015, 63854), (14021, 45610), (20030, 31927), (22805, 28042)]