30912680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{5641}}^1$

素因数の和:5789

約数の個数: 32

約数和(自身を含む): 70073640

約数和(自身を除く): 39160960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 5641, 11282, 22564, 28205, 45128, 56410, 112820, 225640, 772817, 1545634, 3091268, 3864085, 6182536, 7728170, 15456340, 30912680]

約数ペア:

[(1, 30912680), (2, 15456340), (4, 7728170), (5, 6182536), (8, 3864085), (10, 3091268), (20, 1545634), (40, 772817), (137, 225640), (274, 112820), (548, 56410), (685, 45128), (1096, 28205), (1370, 22564), (2740, 11282), (5480, 5641)]