19615780

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{42643}}^1$

素因数の和:42675

約数の個数: 24

約数和(自身を含む): 42985152

約数和(自身を除く): 23369372

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 42643, 85286, 170572, 213215, 426430, 852860, 980789, 1961578, 3923156, 4903945, 9807890, 19615780]

約数ペア:

[(1, 19615780), (2, 9807890), (4, 4903945), (5, 3923156), (10, 1961578), (20, 980789), (23, 852860), (46, 426430), (92, 213215), (115, 170572), (230, 85286), (460, 42643)]