71818540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{211231}}^1$

素因数の和:211257

約数の個数: 24

約数和(自身を含む): 159691392

約数和(自身を除く): 87872852

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 211231, 422462, 844924, 1056155, 2112310, 3590927, 4224620, 7181854, 14363708, 17954635, 35909270, 71818540]

約数ペア:

[(1, 71818540), (2, 35909270), (4, 17954635), (5, 14363708), (10, 7181854), (17, 4224620), (20, 3590927), (34, 2112310), (68, 1056155), (85, 844924), (170, 422462), (340, 211231)]