28478145

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{3851}}^1$

素因数の和:3905

約数の個数: 32

約数和(自身を含む): 49921920

約数和(自身を除く): 21443775

約数列:

[1, 3, 5, 15, 17, 29, 51, 85, 87, 145, 255, 435, 493, 1479, 2465, 3851, 7395, 11553, 19255, 57765, 65467, 111679, 196401, 327335, 335037, 558395, 982005, 1675185, 1898543, 5695629, 9492715, 28478145]

約数ペア:

[(1, 28478145), (3, 9492715), (5, 5695629), (15, 1898543), (17, 1675185), (29, 982005), (51, 558395), (85, 335037), (87, 327335), (145, 196401), (255, 111679), (435, 65467), (493, 57765), (1479, 19255), (2465, 11553), (3851, 7395)]