28542220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203873}}^1$

素因数の和:203889

約数の個数: 24

約数和(自身を含む): 68501664

約数和(自身を除く): 39959444

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203873, 407746, 815492, 1019365, 1427111, 2038730, 2854222, 4077460, 5708444, 7135555, 14271110, 28542220]

約数ペア:

[(1, 28542220), (2, 14271110), (4, 7135555), (5, 5708444), (7, 4077460), (10, 2854222), (14, 2038730), (20, 1427111), (28, 1019365), (35, 815492), (70, 407746), (140, 203873)]