87690040

素因数分解:

$2^3\times 5^1\times {\mathrm{2192251}}^1$

素因数の和:2192262

約数の個数: 16

約数和(自身を含む): 197302680

約数和(自身を除く): 109612640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2192251, 4384502, 8769004, 10961255, 17538008, 21922510, 43845020, 87690040]

約数ペア:

[(1, 87690040), (2, 43845020), (4, 21922510), (5, 17538008), (8, 10961255), (10, 8769004), (20, 4384502), (40, 2192251)]