1239554220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{666427}}^1$

素因数の和:666470

約数の個数: 48

約数和(自身を含む): 3582716928

約数和(自身を除く): 2343162708

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 31, 60, 62, 93, 124, 155, 186, 310, 372, 465, 620, 930, 1860, 666427, 1332854, 1999281, 2665708, 3332135, 3998562, 6664270, 7997124, 9996405, 13328540, 19992810, 20659237, 39985620, 41318474, 61977711, 82636948, 103296185, 123955422, 206592370, 247910844, 309888555, 413184740, 619777110, 1239554220]

約数ペア:

[(1, 1239554220), (2, 619777110), (3, 413184740), (4, 309888555), (5, 247910844), (6, 206592370), (10, 123955422), (12, 103296185), (15, 82636948), (20, 61977711), (30, 41318474), (31, 39985620), (60, 20659237), (62, 19992810), (93, 13328540), (124, 9996405), (155, 7997124), (186, 6664270), (310, 3998562), (372, 3332135), (465, 2665708), (620, 1999281), (930, 1332854), (1860, 666427)]