20749620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1999}}^1$

素因数の和:2184

約数の個数: 48

約数和(自身を含む): 58464000

約数和(自身を除く): 37714380

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 1999, 2076, 2595, 3460, 3998, 5190, 5997, 7996, 9995, 10380, 11994, 19990, 23988, 29985, 39980, 59970, 119940, 345827, 691654, 1037481, 1383308, 1729135, 2074962, 3458270, 4149924, 5187405, 6916540, 10374810, 20749620]

約数ペア:

[(1, 20749620), (2, 10374810), (3, 6916540), (4, 5187405), (5, 4149924), (6, 3458270), (10, 2074962), (12, 1729135), (15, 1383308), (20, 1037481), (30, 691654), (60, 345827), (173, 119940), (346, 59970), (519, 39980), (692, 29985), (865, 23988), (1038, 19990), (1730, 11994), (1999, 10380), (2076, 9995), (2595, 7996), (3460, 5997), (3998, 5190)]