28311975

素因数分解:

$3^2\times 5^2\times {\mathrm{29}}^1\times {\mathrm{4339}}^1$

素因数の和:4384

約数の個数: 36

約数和(自身を含む): 52470600

約数和(自身を除く): 24158625

約数列:

[1, 3, 5, 9, 15, 25, 29, 45, 75, 87, 145, 225, 261, 435, 725, 1305, 2175, 4339, 6525, 13017, 21695, 39051, 65085, 108475, 125831, 195255, 325425, 377493, 629155, 976275, 1132479, 1887465, 3145775, 5662395, 9437325, 28311975]

約数ペア:

[(1, 28311975), (3, 9437325), (5, 5662395), (9, 3145775), (15, 1887465), (25, 1132479), (29, 976275), (45, 629155), (75, 377493), (87, 325425), (145, 195255), (225, 125831), (261, 108475), (435, 65085), (725, 39051), (1305, 21695), (2175, 13017), (4339, 6525)]