20199232840

素因数分解:

$2^3\times 5^1\times {\mathrm{504980821}}^1$

素因数の和:504980832

約数の個数: 16

約数和(自身を含む): 45448273980

約数和(自身を除く): 25249041140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504980821, 1009961642, 2019923284, 2524904105, 4039846568, 5049808210, 10099616420, 20199232840]

約数ペア:

[(1, 20199232840), (2, 10099616420), (4, 5049808210), (5, 4039846568), (8, 2524904105), (10, 2019923284), (20, 1009961642), (40, 504980821)]