128569136

素因数分解:

$2^4\times {\mathrm{643}}^1\times {\mathrm{12497}}^1$

素因数の和:13148

約数の個数: 20

約数和(自身を含む): 249510072

約数和(自身を除く): 120940936

約数列:

[1, 2, 4, 8, 16, 643, 1286, 2572, 5144, 10288, 12497, 24994, 49988, 99976, 199952, 8035571, 16071142, 32142284, 64284568, 128569136]

約数ペア:

[(1, 128569136), (2, 64284568), (4, 32142284), (8, 16071142), (16, 8035571), (643, 199952), (1286, 99976), (2572, 49988), (5144, 24994), (10288, 12497)]