28128375

素因数分解:

$3^2\times 5^3\times {\mathrm{11}}^1\times {\mathrm{2273}}^1$

素因数の和:2305

約数の個数: 48

約数和(自身を含む): 55340064

約数和(自身を除く): 27211689

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 125, 165, 225, 275, 375, 495, 825, 1125, 1375, 2273, 2475, 4125, 6819, 11365, 12375, 20457, 25003, 34095, 56825, 75009, 102285, 125015, 170475, 225027, 284125, 375045, 511425, 625075, 852375, 1125135, 1875225, 2557125, 3125375, 5625675, 9376125, 28128375]

約数ペア:

[(1, 28128375), (3, 9376125), (5, 5625675), (9, 3125375), (11, 2557125), (15, 1875225), (25, 1125135), (33, 852375), (45, 625075), (55, 511425), (75, 375045), (99, 284125), (125, 225027), (165, 170475), (225, 125015), (275, 102285), (375, 75009), (495, 56825), (825, 34095), (1125, 25003), (1375, 20457), (2273, 12375), (2475, 11365), (4125, 6819)]