12720472

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{257}}^1\times {\mathrm{269}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 25077600

約数和(自身を除く): 12357128

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 257, 269, 514, 538, 1028, 1076, 2056, 2152, 5911, 6187, 11822, 12374, 23644, 24748, 47288, 49496, 69133, 138266, 276532, 553064, 1590059, 3180118, 6360236, 12720472]

約数ペア:

[(1, 12720472), (2, 6360236), (4, 3180118), (8, 1590059), (23, 553064), (46, 276532), (92, 138266), (184, 69133), (257, 49496), (269, 47288), (514, 24748), (538, 23644), (1028, 12374), (1076, 11822), (2056, 6187), (2152, 5911)]