20519640

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{56999}}^1$

素因数の和:57016

約数の個数: 48

約数和(自身を含む): 66690000

約数和(自身を除く): 46170360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 180, 360, 56999, 113998, 170997, 227996, 284995, 341994, 455992, 512991, 569990, 683988, 854985, 1025982, 1139980, 1367976, 1709970, 2051964, 2279960, 2564955, 3419940, 4103928, 5129910, 6839880, 10259820, 20519640]

約数ペア:

[(1, 20519640), (2, 10259820), (3, 6839880), (4, 5129910), (5, 4103928), (6, 3419940), (8, 2564955), (9, 2279960), (10, 2051964), (12, 1709970), (15, 1367976), (18, 1139980), (20, 1025982), (24, 854985), (30, 683988), (36, 569990), (40, 512991), (45, 455992), (60, 341994), (72, 284995), (90, 227996), (120, 170997), (180, 113998), (360, 56999)]