28228275

素因数分解:

$3^2\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1151}}^1$

素因数の和:1276

約数の個数: 36

約数和(自身を含む): 51068160

約数和(自身を除く): 22839885

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 109, 225, 327, 545, 981, 1151, 1635, 2725, 3453, 4905, 5755, 8175, 10359, 17265, 24525, 28775, 51795, 86325, 125459, 258975, 376377, 627295, 1129131, 1881885, 3136475, 5645655, 9409425, 28228275]

約数ペア:

[(1, 28228275), (3, 9409425), (5, 5645655), (9, 3136475), (15, 1881885), (25, 1129131), (45, 627295), (75, 376377), (109, 258975), (225, 125459), (327, 86325), (545, 51795), (981, 28775), (1151, 24525), (1635, 17265), (2725, 10359), (3453, 8175), (4905, 5755)]