81857975

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{1907}}^1$

素因数の和:2035

約数の個数: 24

約数和(自身を含む): 108595728

約数和(自身を除く): 26737753

約数列:

[1, 5, 17, 25, 85, 101, 425, 505, 1717, 1907, 2525, 8585, 9535, 32419, 42925, 47675, 162095, 192607, 810475, 963035, 3274319, 4815175, 16371595, 81857975]

約数ペア:

[(1, 81857975), (5, 16371595), (17, 4815175), (25, 3274319), (85, 963035), (101, 810475), (425, 192607), (505, 162095), (1717, 47675), (1907, 42925), (2525, 32419), (8585, 9535)]