18700660

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{167}}^1\times {\mathrm{509}}^1$

素因数の和:696

約数の個数: 48

約数和(自身を含む): 43182720

約数和(自身を除く): 24482060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 167, 220, 334, 509, 668, 835, 1018, 1670, 1837, 2036, 2545, 3340, 3674, 5090, 5599, 7348, 9185, 10180, 11198, 18370, 22396, 27995, 36740, 55990, 85003, 111980, 170006, 340012, 425015, 850030, 935033, 1700060, 1870066, 3740132, 4675165, 9350330, 18700660]

約数ペア:

[(1, 18700660), (2, 9350330), (4, 4675165), (5, 3740132), (10, 1870066), (11, 1700060), (20, 935033), (22, 850030), (44, 425015), (55, 340012), (110, 170006), (167, 111980), (220, 85003), (334, 55990), (509, 36740), (668, 27995), (835, 22396), (1018, 18370), (1670, 11198), (1837, 10180), (2036, 9185), (2545, 7348), (3340, 5599), (3674, 5090)]