28180575

素因数分解:

$3^3\times 5^2\times {\mathrm{83}}^1\times {\mathrm{503}}^1$

素因数の和:605

約数の個数: 48

約数和(自身を含む): 52496640

約数和(自身を除く): 24316065

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 83, 135, 225, 249, 415, 503, 675, 747, 1245, 1509, 2075, 2241, 2515, 3735, 4527, 6225, 7545, 11205, 12575, 13581, 18675, 22635, 37725, 41749, 56025, 67905, 113175, 125247, 208745, 339525, 375741, 626235, 1043725, 1127223, 1878705, 3131175, 5636115, 9393525, 28180575]

約数ペア:

[(1, 28180575), (3, 9393525), (5, 5636115), (9, 3131175), (15, 1878705), (25, 1127223), (27, 1043725), (45, 626235), (75, 375741), (83, 339525), (135, 208745), (225, 125247), (249, 113175), (415, 67905), (503, 56025), (675, 41749), (747, 37725), (1245, 22635), (1509, 18675), (2075, 13581), (2241, 12575), (2515, 11205), (3735, 7545), (4527, 6225)]