16165820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{197}}^1\times {\mathrm{373}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 37322208

約数和(自身を除く): 21156388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 197, 220, 373, 394, 746, 788, 985, 1492, 1865, 1970, 2167, 3730, 3940, 4103, 4334, 7460, 8206, 8668, 10835, 16412, 20515, 21670, 41030, 43340, 73481, 82060, 146962, 293924, 367405, 734810, 808291, 1469620, 1616582, 3233164, 4041455, 8082910, 16165820]

約数ペア:

[(1, 16165820), (2, 8082910), (4, 4041455), (5, 3233164), (10, 1616582), (11, 1469620), (20, 808291), (22, 734810), (44, 367405), (55, 293924), (110, 146962), (197, 82060), (220, 73481), (373, 43340), (394, 41030), (746, 21670), (788, 20515), (985, 16412), (1492, 10835), (1865, 8668), (1970, 8206), (2167, 7460), (3730, 4334), (3940, 4103)]