290852840

素因数分解:

$2^3\times 5^1\times {\mathrm{7271321}}^1$

素因数の和:7271332

約数の個数: 16

約数和(自身を含む): 654418980

約数和(自身を除く): 363566140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 7271321, 14542642, 29085284, 36356605, 58170568, 72713210, 145426420, 290852840]

約数ペア:

[(1, 290852840), (2, 145426420), (4, 72713210), (5, 58170568), (8, 36356605), (10, 29085284), (20, 14542642), (40, 7271321)]