205120198925

素因数分解:

$5^2\times {\mathrm{643}}^1\times {\mathrm{1663}}^1\times {\mathrm{7673}}^1$

素因数の和:9989

約数の個数: 24

約数和(自身を含む): 254931016704

約数和(自身を除く): 49810817779

約数列:

[1, 5, 25, 643, 1663, 3215, 7673, 8315, 16075, 38365, 41575, 191825, 1069309, 4933739, 5346545, 12760199, 24668695, 26732725, 63800995, 123343475, 319004975, 8204807957, 41024039785, 205120198925]

約数ペア:

[(1, 205120198925), (5, 41024039785), (25, 8204807957), (643, 319004975), (1663, 123343475), (3215, 63800995), (7673, 26732725), (8315, 24668695), (16075, 12760199), (38365, 5346545), (41575, 4933739), (191825, 1069309)]