77638840

素因数分解:

$2^3\times 5^1\times {\mathrm{1940971}}^1$

素因数の和:1940982

約数の個数: 16

約数和(自身を含む): 174687480

約数和(自身を除く): 97048640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1940971, 3881942, 7763884, 9704855, 15527768, 19409710, 38819420, 77638840]

約数ペア:

[(1, 77638840), (2, 38819420), (4, 19409710), (5, 15527768), (8, 9704855), (10, 7763884), (20, 3881942), (40, 1940971)]