80179900

素因数分解:

$2^2\times 5^2\times {\mathrm{157}}^1\times {\mathrm{5107}}^1$

素因数の和:5278

約数の個数: 36

約数和(自身を含む): 175132888

約数和(自身を除く): 94952988

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 157, 314, 628, 785, 1570, 3140, 3925, 5107, 7850, 10214, 15700, 20428, 25535, 51070, 102140, 127675, 255350, 510700, 801799, 1603598, 3207196, 4008995, 8017990, 16035980, 20044975, 40089950, 80179900]

約数ペア:

[(1, 80179900), (2, 40089950), (4, 20044975), (5, 16035980), (10, 8017990), (20, 4008995), (25, 3207196), (50, 1603598), (100, 801799), (157, 510700), (314, 255350), (628, 127675), (785, 102140), (1570, 51070), (3140, 25535), (3925, 20428), (5107, 15700), (7850, 10214)]