19375640

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{701}}^1$

素因数の和:1403

約数の個数: 32

約数和(自身を含む): 43720560

約数和(自身を除く): 24344920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 701, 1382, 1402, 2764, 2804, 3455, 3505, 5528, 5608, 6910, 7010, 13820, 14020, 27640, 28040, 484391, 968782, 1937564, 2421955, 3875128, 4843910, 9687820, 19375640]

約数ペア:

[(1, 19375640), (2, 9687820), (4, 4843910), (5, 3875128), (8, 2421955), (10, 1937564), (20, 968782), (40, 484391), (691, 28040), (701, 27640), (1382, 14020), (1402, 13820), (2764, 7010), (2804, 6910), (3455, 5608), (3505, 5528)]