164232520

素因数分解:

$2^3\times 5^1\times {\mathrm{1973}}^1\times {\mathrm{2081}}^1$

素因数の和:4065

約数の個数: 32

約数和(自身を含む): 369888120

約数和(自身を除く): 205655600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1973, 2081, 3946, 4162, 7892, 8324, 9865, 10405, 15784, 16648, 19730, 20810, 39460, 41620, 78920, 83240, 4105813, 8211626, 16423252, 20529065, 32846504, 41058130, 82116260, 164232520]

約数ペア:

[(1, 164232520), (2, 82116260), (4, 41058130), (5, 32846504), (8, 20529065), (10, 16423252), (20, 8211626), (40, 4105813), (1973, 83240), (2081, 78920), (3946, 41620), (4162, 39460), (7892, 20810), (8324, 19730), (9865, 16648), (10405, 15784)]