80720255

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2953}}^1$

素因数の和:3047

約数の個数: 32

約数和(自身を含む): 122508288

約数和(自身を除く): 41788033

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 355, 385, 497, 781, 2485, 2953, 3905, 5467, 14765, 20671, 27335, 32483, 103355, 162415, 209663, 227381, 1048315, 1136905, 1467641, 2306293, 7338205, 11531465, 16144051, 80720255]

約数ペア:

[(1, 80720255), (5, 16144051), (7, 11531465), (11, 7338205), (35, 2306293), (55, 1467641), (71, 1136905), (77, 1048315), (355, 227381), (385, 209663), (497, 162415), (781, 103355), (2485, 32483), (2953, 27335), (3905, 20671), (5467, 14765)]