1990753385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{2129}}^1$

素因数の和:2377

約数の個数: 32

約数和(自身を含む): 2561725440

約数和(自身を除く): 570972055

約数列:

[1, 5, 23, 47, 115, 173, 235, 865, 1081, 2129, 3979, 5405, 8131, 10645, 19895, 40655, 48967, 100063, 187013, 244835, 368317, 500315, 935065, 1841585, 2301449, 8471291, 11507245, 17310899, 42356455, 86554495, 398150677, 1990753385]

約数ペア:

[(1, 1990753385), (5, 398150677), (23, 86554495), (47, 42356455), (115, 17310899), (173, 11507245), (235, 8471291), (865, 2301449), (1081, 1841585), (2129, 935065), (3979, 500315), (5405, 368317), (8131, 244835), (10645, 187013), (19895, 100063), (40655, 48967)]