201539180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^2\times {\mathrm{1999}}^1$

素因数の和:2150

約数の個数: 36

約数和(自身を含む): 429492000

約数和(自身を除く): 227952820

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 1999, 3998, 5041, 7996, 9995, 10082, 19990, 20164, 25205, 39980, 50410, 100820, 141929, 283858, 567716, 709645, 1419290, 2838580, 10076959, 20153918, 40307836, 50384795, 100769590, 201539180]

約数ペア:

[(1, 201539180), (2, 100769590), (4, 50384795), (5, 40307836), (10, 20153918), (20, 10076959), (71, 2838580), (142, 1419290), (284, 709645), (355, 567716), (710, 283858), (1420, 141929), (1999, 100820), (3998, 50410), (5041, 39980), (7996, 25205), (9995, 20164), (10082, 19990)]