2780775

素因数分解:

$3^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{727}}^1$

素因数の和:760

約数の個数: 36

約数和(自身を含む): 5280912

約数和(自身を除く): 2500137

約数列:

[1, 3, 5, 9, 15, 17, 25, 45, 51, 75, 85, 153, 225, 255, 425, 727, 765, 1275, 2181, 3635, 3825, 6543, 10905, 12359, 18175, 32715, 37077, 54525, 61795, 111231, 163575, 185385, 308975, 556155, 926925, 2780775]

約数ペア:

[(1, 2780775), (3, 926925), (5, 556155), (9, 308975), (15, 185385), (17, 163575), (25, 111231), (45, 61795), (51, 54525), (75, 37077), (85, 32715), (153, 18175), (225, 12359), (255, 10905), (425, 6543), (727, 3825), (765, 3635), (1275, 2181)]