42705640

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7793}}^1$

素因数の和:7941

約数の個数: 32

約数和(自身を含む): 96801480

約数和(自身を除く): 54095840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 7793, 15586, 31172, 38965, 62344, 77930, 155860, 311720, 1067641, 2135282, 4270564, 5338205, 8541128, 10676410, 21352820, 42705640]

約数ペア:

[(1, 42705640), (2, 21352820), (4, 10676410), (5, 8541128), (8, 5338205), (10, 4270564), (20, 2135282), (40, 1067641), (137, 311720), (274, 155860), (548, 77930), (685, 62344), (1096, 38965), (1370, 31172), (2740, 15586), (5480, 7793)]