280080015

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{64609}}^1$

素因数の和:64651

約数の個数: 24

約数和(自身を含む): 476046480

約数和(自身を除く): 195966465

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 289, 867, 1445, 4335, 64609, 193827, 323045, 969135, 1098353, 3295059, 5491765, 16475295, 18672001, 56016003, 93360005, 280080015]

約数ペア:

[(1, 280080015), (3, 93360005), (5, 56016003), (15, 18672001), (17, 16475295), (51, 5491765), (85, 3295059), (255, 1098353), (289, 969135), (867, 323045), (1445, 193827), (4335, 64609)]