199943978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1999}}^1\times {\mathrm{3847}}^1$

素因数の和:5861

約数の個数: 16

約数和(自身を含む): 323232000

約数和(自身を除く): 123288022

約数列:

[1, 2, 13, 26, 1999, 3847, 3998, 7694, 25987, 50011, 51974, 100022, 7690153, 15380306, 99971989, 199943978]

約数ペア:

[(1, 199943978), (2, 99971989), (13, 15380306), (26, 7690153), (1999, 100022), (3847, 51974), (3998, 50011), (7694, 25987)]