1990201745

素因数分解:

$5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{200929}}^1$

素因数の和:201224

約数の個数: 16

約数和(自身を含む): 2739077760

約数和(自身を除く): 748876015

約数列:

[1, 5, 7, 35, 283, 1415, 1981, 9905, 200929, 1004645, 1406503, 7032515, 56862907, 284314535, 398040349, 1990201745]

約数ペア:

[(1, 1990201745), (5, 398040349), (7, 284314535), (35, 56862907), (283, 7032515), (1415, 1406503), (1981, 1004645), (9905, 200929)]