28647825

素因数分解:

$3^1\times 5^2\times {\mathrm{53}}^1\times {\mathrm{7207}}^1$

素因数の和:7273

約数の個数: 24

約数和(自身を含む): 48264768

約数和(自身を除く): 19616943

約数列:

[1, 3, 5, 15, 25, 53, 75, 159, 265, 795, 1325, 3975, 7207, 21621, 36035, 108105, 180175, 381971, 540525, 1145913, 1909855, 5729565, 9549275, 28647825]

約数ペア:

[(1, 28647825), (3, 9549275), (5, 5729565), (15, 1909855), (25, 1145913), (53, 540525), (75, 381971), (159, 180175), (265, 108105), (795, 36035), (1325, 21621), (3975, 7207)]