81905625

素因数分解:

$3^2\times 5^4\times {\mathrm{14561}}^1$

素因数の和:14587

約数の個数: 30

約数和(自身を含む): 147847986

約数和(自身を除く): 65942361

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 625, 1125, 1875, 5625, 14561, 43683, 72805, 131049, 218415, 364025, 655245, 1092075, 1820125, 3276225, 5460375, 9100625, 16381125, 27301875, 81905625]

約数ペア:

[(1, 81905625), (3, 27301875), (5, 16381125), (9, 9100625), (15, 5460375), (25, 3276225), (45, 1820125), (75, 1092075), (125, 655245), (225, 364025), (375, 218415), (625, 131049), (1125, 72805), (1875, 43683), (5625, 14561)]