15839780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71999}}^1$

素因数の和:72019

約数の個数: 24

約数和(自身を含む): 36288000

約数和(自身を除く): 20448220

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 71999, 143998, 287996, 359995, 719990, 791989, 1439980, 1583978, 3167956, 3959945, 7919890, 15839780]

約数ペア:

[(1, 15839780), (2, 7919890), (4, 3959945), (5, 3167956), (10, 1583978), (11, 1439980), (20, 791989), (22, 719990), (44, 359995), (55, 287996), (110, 143998), (220, 71999)]