28456605

素因数分解:

$3^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20399}}^1$

素因数の和:20441

約数の個数: 24

約数和(自身を含む): 50918400

約数和(自身を除く): 22461795

約数列:

[1, 3, 5, 9, 15, 31, 45, 93, 155, 279, 465, 1395, 20399, 61197, 101995, 183591, 305985, 632369, 917955, 1897107, 3161845, 5691321, 9485535, 28456605]

約数ペア:

[(1, 28456605), (3, 9485535), (5, 5691321), (9, 3161845), (15, 1897107), (31, 917955), (45, 632369), (93, 305985), (155, 183591), (279, 101995), (465, 61197), (1395, 20399)]