77804720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{138937}}^1$

素因数の和:138957

約数の個数: 40

約数和(自身を含む): 206739744

約数和(自身を除く): 128935024

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 138937, 277874, 555748, 694685, 972559, 1111496, 1389370, 1945118, 2222992, 2778740, 3890236, 4862795, 5557480, 7780472, 9725590, 11114960, 15560944, 19451180, 38902360, 77804720]

約数ペア:

[(1, 77804720), (2, 38902360), (4, 19451180), (5, 15560944), (7, 11114960), (8, 9725590), (10, 7780472), (14, 5557480), (16, 4862795), (20, 3890236), (28, 2778740), (35, 2222992), (40, 1945118), (56, 1389370), (70, 1111496), (80, 972559), (112, 694685), (140, 555748), (280, 277874), (560, 138937)]