28778775

素因数分解:

$3^1\times 5^2\times {\mathrm{263}}^1\times {\mathrm{1459}}^1$

素因数の和:1735

約数の個数: 24

約数和(自身を含む): 47794560

約数和(自身を除く): 19015785

約数列:

[1, 3, 5, 15, 25, 75, 263, 789, 1315, 1459, 3945, 4377, 6575, 7295, 19725, 21885, 36475, 109425, 383717, 1151151, 1918585, 5755755, 9592925, 28778775]

約数ペア:

[(1, 28778775), (3, 9592925), (5, 5755755), (15, 1918585), (25, 1151151), (75, 383717), (263, 109425), (789, 36475), (1315, 21885), (1459, 19725), (3945, 7295), (4377, 6575)]