8780420

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{373}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 20357568

約数和(自身を除く): 11577148

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 107, 110, 214, 220, 373, 428, 535, 746, 1070, 1177, 1492, 1865, 2140, 2354, 3730, 4103, 4708, 5885, 7460, 8206, 11770, 16412, 20515, 23540, 39911, 41030, 79822, 82060, 159644, 199555, 399110, 439021, 798220, 878042, 1756084, 2195105, 4390210, 8780420]

約数ペア:

[(1, 8780420), (2, 4390210), (4, 2195105), (5, 1756084), (10, 878042), (11, 798220), (20, 439021), (22, 399110), (44, 199555), (55, 159644), (107, 82060), (110, 79822), (214, 41030), (220, 39911), (373, 23540), (428, 20515), (535, 16412), (746, 11770), (1070, 8206), (1177, 7460), (1492, 5885), (1865, 4708), (2140, 4103), (2354, 3730)]