16199780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{479}}^1$

素因数の和:596

約数の個数: 48

約数和(自身を含む): 36288000

約数和(自身を除く): 20088220

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 89, 95, 178, 190, 356, 380, 445, 479, 890, 958, 1691, 1780, 1916, 2395, 3382, 4790, 6764, 8455, 9101, 9580, 16910, 18202, 33820, 36404, 42631, 45505, 85262, 91010, 170524, 182020, 213155, 426310, 809989, 852620, 1619978, 3239956, 4049945, 8099890, 16199780]

約数ペア:

[(1, 16199780), (2, 8099890), (4, 4049945), (5, 3239956), (10, 1619978), (19, 852620), (20, 809989), (38, 426310), (76, 213155), (89, 182020), (95, 170524), (178, 91010), (190, 85262), (356, 45505), (380, 42631), (445, 36404), (479, 33820), (890, 18202), (958, 16910), (1691, 9580), (1780, 9101), (1916, 8455), (2395, 6764), (3382, 4790)]