159933040

素因数分解:

$2^4\times 5^1\times {\mathrm{1999163}}^1$

素因数の和:1999176

約数の個数: 20

約数和(自身を含む): 371844504

約数和(自身を除く): 211911464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1999163, 3998326, 7996652, 9995815, 15993304, 19991630, 31986608, 39983260, 79966520, 159933040]

約数ペア:

[(1, 159933040), (2, 79966520), (4, 39983260), (5, 31986608), (8, 19991630), (10, 15993304), (16, 9995815), (20, 7996652), (40, 3998326), (80, 1999163)]