11390990

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{87623}}^1$

素因数の和:87643

約数の個数: 16

約数和(自身を含む): 22081248

約数和(自身を除く): 10690258

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 87623, 175246, 438115, 876230, 1139099, 2278198, 5695495, 11390990]

約数ペア:

[(1, 11390990), (2, 5695495), (5, 2278198), (10, 1139099), (13, 876230), (26, 438115), (65, 175246), (130, 87623)]