201722990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{22691}}^1$

素因数の和:22832

約数の個数: 32

約数和(自身を含む): 418258944

約数和(自身を除く): 216535954

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 127, 254, 635, 889, 1270, 1778, 4445, 8890, 22691, 45382, 113455, 158837, 226910, 317674, 794185, 1588370, 2881757, 5763514, 14408785, 20172299, 28817570, 40344598, 100861495, 201722990]

約数ペア:

[(1, 201722990), (2, 100861495), (5, 40344598), (7, 28817570), (10, 20172299), (14, 14408785), (35, 5763514), (70, 2881757), (127, 1588370), (254, 794185), (635, 317674), (889, 226910), (1270, 158837), (1778, 113455), (4445, 45382), (8890, 22691)]