128545780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{947}}^1$

素因数の和:1584

約数の個数: 48

約数和(自身を含む): 295275456

約数和(自身を除く): 166729676

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 617, 947, 1234, 1894, 2468, 3085, 3788, 4735, 6170, 6787, 9470, 10417, 12340, 13574, 18940, 20834, 27148, 33935, 41668, 52085, 67870, 104170, 135740, 208340, 584299, 1168598, 2337196, 2921495, 5842990, 6427289, 11685980, 12854578, 25709156, 32136445, 64272890, 128545780]

約数ペア:

[(1, 128545780), (2, 64272890), (4, 32136445), (5, 25709156), (10, 12854578), (11, 11685980), (20, 6427289), (22, 5842990), (44, 2921495), (55, 2337196), (110, 1168598), (220, 584299), (617, 208340), (947, 135740), (1234, 104170), (1894, 67870), (2468, 52085), (3085, 41668), (3788, 33935), (4735, 27148), (6170, 20834), (6787, 18940), (9470, 13574), (10417, 12340)]