19130680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{3491}}^1$

素因数の和:3639

約数の個数: 32

約数和(自身を含む): 43370640

約数和(自身を除く): 24239960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 3491, 5480, 6982, 13964, 17455, 27928, 34910, 69820, 139640, 478267, 956534, 1913068, 2391335, 3826136, 4782670, 9565340, 19130680]

約数ペア:

[(1, 19130680), (2, 9565340), (4, 4782670), (5, 3826136), (8, 2391335), (10, 1913068), (20, 956534), (40, 478267), (137, 139640), (274, 69820), (548, 34910), (685, 27928), (1096, 17455), (1370, 13964), (2740, 6982), (3491, 5480)]