71840840

素因数分解:

$2^3\times 5^1\times {\mathrm{1796021}}^1$

素因数の和:1796032

約数の個数: 16

約数和(自身を含む): 161641980

約数和(自身を除く): 89801140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1796021, 3592042, 7184084, 8980105, 14368168, 17960210, 35920420, 71840840]

約数ペア:

[(1, 71840840), (2, 35920420), (4, 17960210), (5, 14368168), (8, 8980105), (10, 7184084), (20, 3592042), (40, 1796021)]