19861980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3037}}^1$

素因数の和:3158

約数の個数: 48

約数和(自身を含む): 56142240

約数和(自身を除く): 36280260

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 109, 218, 327, 436, 545, 654, 1090, 1308, 1635, 2180, 3037, 3270, 6074, 6540, 9111, 12148, 15185, 18222, 30370, 36444, 45555, 60740, 91110, 182220, 331033, 662066, 993099, 1324132, 1655165, 1986198, 3310330, 3972396, 4965495, 6620660, 9930990, 19861980]

約数ペア:

[(1, 19861980), (2, 9930990), (3, 6620660), (4, 4965495), (5, 3972396), (6, 3310330), (10, 1986198), (12, 1655165), (15, 1324132), (20, 993099), (30, 662066), (60, 331033), (109, 182220), (218, 91110), (327, 60740), (436, 45555), (545, 36444), (654, 30370), (1090, 18222), (1308, 15185), (1635, 12148), (2180, 9111), (3037, 6540), (3270, 6074)]