2778975

素因数分解:

$3^3\times 5^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 5356800

約数和(自身を除く): 2577825

約数列:

[1, 3, 5, 9, 15, 23, 25, 27, 45, 69, 75, 115, 135, 179, 207, 225, 345, 537, 575, 621, 675, 895, 1035, 1611, 1725, 2685, 3105, 4117, 4475, 4833, 5175, 8055, 12351, 13425, 15525, 20585, 24165, 37053, 40275, 61755, 102925, 111159, 120825, 185265, 308775, 555795, 926325, 2778975]

約数ペア:

[(1, 2778975), (3, 926325), (5, 555795), (9, 308775), (15, 185265), (23, 120825), (25, 111159), (27, 102925), (45, 61755), (69, 40275), (75, 37053), (115, 24165), (135, 20585), (179, 15525), (207, 13425), (225, 12351), (345, 8055), (537, 5175), (575, 4833), (621, 4475), (675, 4117), (895, 3105), (1035, 2685), (1611, 1725)]