42420680

素因数分解:

$2^3\times 5^1\times {\mathrm{137}}^1\times {\mathrm{7741}}^1$

素因数の和:7889

約数の個数: 32

約数和(自身を含む): 96155640

約数和(自身を除く): 53734960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 137, 274, 548, 685, 1096, 1370, 2740, 5480, 7741, 15482, 30964, 38705, 61928, 77410, 154820, 309640, 1060517, 2121034, 4242068, 5302585, 8484136, 10605170, 21210340, 42420680]

約数ペア:

[(1, 42420680), (2, 21210340), (4, 10605170), (5, 8484136), (8, 5302585), (10, 4242068), (20, 2121034), (40, 1060517), (137, 309640), (274, 154820), (548, 77410), (685, 61928), (1096, 38705), (1370, 30964), (2740, 15482), (5480, 7741)]