80940784

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{46411}}^1$

素因数の和:46528

約数の個数: 20

約数和(自身を含む): 158264920

約数和(自身を除く): 77324136

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 46411, 92822, 185644, 371288, 742576, 5058799, 10117598, 20235196, 40470392, 80940784]

約数ペア:

[(1, 80940784), (2, 40470392), (4, 20235196), (8, 10117598), (16, 5058799), (109, 742576), (218, 371288), (436, 185644), (872, 92822), (1744, 46411)]