1780262883

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{131}}^1\times {\mathrm{1979}}^1$

素因数の和:2232

約数の個数: 48

約数和(自身を含む): 2989958400

約数和(自身を除く): 1209695517

約数列:

[1, 3, 7, 9, 21, 63, 109, 131, 327, 393, 763, 917, 981, 1179, 1979, 2289, 2751, 5937, 6867, 8253, 13853, 14279, 17811, 41559, 42837, 99953, 124677, 128511, 215711, 259249, 299859, 647133, 777747, 899577, 1509977, 1814743, 1941399, 2333241, 4529931, 5444229, 13589793, 16332687, 28258141, 84774423, 197806987, 254323269, 593420961, 1780262883]

約数ペア:

[(1, 1780262883), (3, 593420961), (7, 254323269), (9, 197806987), (21, 84774423), (63, 28258141), (109, 16332687), (131, 13589793), (327, 5444229), (393, 4529931), (763, 2333241), (917, 1941399), (981, 1814743), (1179, 1509977), (1979, 899577), (2289, 777747), (2751, 647133), (5937, 299859), (6867, 259249), (8253, 215711), (13853, 128511), (14279, 124677), (17811, 99953), (41559, 42837)]