28478745

素因数分解:

$3^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{4831}}^1$

素因数の和:4973

約数の個数: 24

約数和(自身を含む): 49750272

約数和(自身を除く): 21271527

約数列:

[1, 3, 5, 9, 15, 45, 131, 393, 655, 1179, 1965, 4831, 5895, 14493, 24155, 43479, 72465, 217395, 632861, 1898583, 3164305, 5695749, 9492915, 28478745]

約数ペア:

[(1, 28478745), (3, 9492915), (5, 5695749), (9, 3164305), (15, 1898583), (45, 632861), (131, 217395), (393, 72465), (655, 43479), (1179, 24155), (1965, 14493), (4831, 5895)]