16005040

素因数分解:

$2^4\times 5^1\times {\mathrm{200063}}^1$

素因数の和:200076

約数の個数: 20

約数和(自身を含む): 37211904

約数和(自身を除く): 21206864

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 200063, 400126, 800252, 1000315, 1600504, 2000630, 3201008, 4001260, 8002520, 16005040]

約数ペア:

[(1, 16005040), (2, 8002520), (4, 4001260), (5, 3201008), (8, 2000630), (10, 1600504), (16, 1000315), (20, 800252), (40, 400126), (80, 200063)]