28180485

素因数分解:

$3^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{7927}}^1$

素因数の和:8017

約数の個数: 24

約数和(自身を含む): 49470720

約数和(自身を除く): 21290235

約数列:

[1, 3, 5, 9, 15, 45, 79, 237, 395, 711, 1185, 3555, 7927, 23781, 39635, 71343, 118905, 356715, 626233, 1878699, 3131165, 5636097, 9393495, 28180485]

約数ペア:

[(1, 28180485), (3, 9393495), (5, 5636097), (9, 3131165), (15, 1878699), (45, 626233), (79, 356715), (237, 118905), (395, 71343), (711, 39635), (1185, 23781), (3555, 7927)]