20090855

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^2\times {\mathrm{107}}^1$

素因数の和:223

約数の個数: 24

約数和(自身を含む): 26325648

約数和(自身を除く): 6234793

約数列:

[1, 5, 17, 47, 85, 107, 235, 535, 799, 1819, 2209, 3995, 5029, 9095, 11045, 25145, 37553, 85493, 187765, 236363, 427465, 1181815, 4018171, 20090855]

約数ペア:

[(1, 20090855), (5, 4018171), (17, 1181815), (47, 427465), (85, 236363), (107, 187765), (235, 85493), (535, 37553), (799, 25145), (1819, 11045), (2209, 9095), (3995, 5029)]