20012145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{78479}}^1$

素因数の和:78504

約数の個数: 16

約数和(自身を含む): 33903360

約数和(自身を除く): 13891215

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 78479, 235437, 392395, 1177185, 1334143, 4002429, 6670715, 20012145]

約数ペア:

[(1, 20012145), (3, 6670715), (5, 4002429), (15, 1334143), (17, 1177185), (51, 392395), (85, 235437), (255, 78479)]