71917775

素因数分解:

$5^2\times {\mathrm{73}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 91337904

約数和(自身を除く): 19420129

約数列:

[1, 5, 25, 73, 157, 251, 365, 785, 1255, 1825, 3925, 6275, 11461, 18323, 39407, 57305, 91615, 197035, 286525, 458075, 985175, 2876711, 14383555, 71917775]

約数ペア:

[(1, 71917775), (5, 14383555), (25, 2876711), (73, 985175), (157, 458075), (251, 286525), (365, 197035), (785, 91615), (1255, 57305), (1825, 39407), (3925, 18323), (6275, 11461)]