28238625

素因数分解:

$3^4\times 5^3\times {\mathrm{2789}}^1$

素因数の和:2816

約数の個数: 40

約数和(自身を含む): 52664040

約数和(自身を除く): 24425415

約数列:

[1, 3, 5, 9, 15, 25, 27, 45, 75, 81, 125, 135, 225, 375, 405, 675, 1125, 2025, 2789, 3375, 8367, 10125, 13945, 25101, 41835, 69725, 75303, 125505, 209175, 225909, 348625, 376515, 627525, 1045875, 1129545, 1882575, 3137625, 5647725, 9412875, 28238625]

約数ペア:

[(1, 28238625), (3, 9412875), (5, 5647725), (9, 3137625), (15, 1882575), (25, 1129545), (27, 1045875), (45, 627525), (75, 376515), (81, 348625), (125, 225909), (135, 209175), (225, 125505), (375, 75303), (405, 69725), (675, 41835), (1125, 25101), (2025, 13945), (2789, 10125), (3375, 8367)]