65191240

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{8273}}^1$

素因数の和:8481

約数の個数: 32

約数和(自身を含む): 147442680

約数和(自身を除く): 82251440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1576, 1970, 3940, 7880, 8273, 16546, 33092, 41365, 66184, 82730, 165460, 330920, 1629781, 3259562, 6519124, 8148905, 13038248, 16297810, 32595620, 65191240]

約数ペア:

[(1, 65191240), (2, 32595620), (4, 16297810), (5, 13038248), (8, 8148905), (10, 6519124), (20, 3259562), (40, 1629781), (197, 330920), (394, 165460), (788, 82730), (985, 66184), (1576, 41365), (1970, 33092), (3940, 16546), (7880, 8273)]