81905415

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{1193}}^1$

素因数の和:1423

約数の個数: 32

約数和(自身を含む): 137548800

約数和(自身を除く): 55643385

約数列:

[1, 3, 5, 15, 23, 69, 115, 199, 345, 597, 995, 1193, 2985, 3579, 4577, 5965, 13731, 17895, 22885, 27439, 68655, 82317, 137195, 237407, 411585, 712221, 1187035, 3561105, 5460361, 16381083, 27301805, 81905415]

約数ペア:

[(1, 81905415), (3, 27301805), (5, 16381083), (15, 5460361), (23, 3561105), (69, 1187035), (115, 712221), (199, 411585), (345, 237407), (597, 137195), (995, 82317), (1193, 68655), (2985, 27439), (3579, 22885), (4577, 17895), (5965, 13731)]