12970220

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8209}}^1$

素因数の和:8297

約数の個数: 24

約数和(自身を含む): 27585600

約数和(自身を除く): 14615380

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 8209, 16418, 32836, 41045, 82090, 164180, 648511, 1297022, 2594044, 3242555, 6485110, 12970220]

約数ペア:

[(1, 12970220), (2, 6485110), (4, 3242555), (5, 2594044), (10, 1297022), (20, 648511), (79, 164180), (158, 82090), (316, 41045), (395, 32836), (790, 16418), (1580, 8209)]