28620675

素因数分解:

$3^3\times 5^2\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:517

約数の個数: 48

約数和(自身を含む): 53196000

約数和(自身を除く): 24575325

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 109, 135, 225, 327, 389, 545, 675, 981, 1167, 1635, 1945, 2725, 2943, 3501, 4905, 5835, 8175, 9725, 10503, 14715, 17505, 24525, 29175, 42401, 52515, 73575, 87525, 127203, 212005, 262575, 381609, 636015, 1060025, 1144827, 1908045, 3180075, 5724135, 9540225, 28620675]

約数ペア:

[(1, 28620675), (3, 9540225), (5, 5724135), (9, 3180075), (15, 1908045), (25, 1144827), (27, 1060025), (45, 636015), (75, 381609), (109, 262575), (135, 212005), (225, 127203), (327, 87525), (389, 73575), (545, 52515), (675, 42401), (981, 29175), (1167, 24525), (1635, 17505), (1945, 14715), (2725, 10503), (2943, 9725), (3501, 8175), (4905, 5835)]