40804240

素因数分解:

$2^4\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1609}}^1$

素因数の和:1939

約数の個数: 40

約数和(自身を含む): 95228280

約数和(自身を除く): 54424040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 317, 634, 1268, 1585, 1609, 2536, 3170, 3218, 5072, 6340, 6436, 8045, 12680, 12872, 16090, 25360, 25744, 32180, 64360, 128720, 510053, 1020106, 2040212, 2550265, 4080424, 5100530, 8160848, 10201060, 20402120, 40804240]

約数ペア:

[(1, 40804240), (2, 20402120), (4, 10201060), (5, 8160848), (8, 5100530), (10, 4080424), (16, 2550265), (20, 2040212), (40, 1020106), (80, 510053), (317, 128720), (634, 64360), (1268, 32180), (1585, 25744), (1609, 25360), (2536, 16090), (3170, 12872), (3218, 12680), (5072, 8045), (6340, 6436)]