2018081680

素因数分解:

$2^4\times 5^1\times {\mathrm{25226021}}^1$

素因数の和:25226034

約数の個数: 20

約数和(自身を含む): 4692040092

約数和(自身を除く): 2673958412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25226021, 50452042, 100904084, 126130105, 201808168, 252260210, 403616336, 504520420, 1009040840, 2018081680]

約数ペア:

[(1, 2018081680), (2, 1009040840), (4, 504520420), (5, 403616336), (8, 252260210), (10, 201808168), (16, 126130105), (20, 100904084), (40, 50452042), (80, 25226021)]