78400005

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{307451}}^1$

素因数の和:307476

約数の個数: 16

約数和(自身を含む): 132819264

約数和(自身を除く): 54419259

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 307451, 922353, 1537255, 4611765, 5226667, 15680001, 26133335, 78400005]

約数ペア:

[(1, 78400005), (3, 26133335), (5, 15680001), (15, 5226667), (17, 4611765), (51, 1537255), (85, 922353), (255, 307451)]