16640920

素因数分解:

$2^3\times 5^1\times {\mathrm{416023}}^1$

素因数の和:416034

約数の個数: 16

約数和(自身を含む): 37442160

約数和(自身を除く): 20801240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 416023, 832046, 1664092, 2080115, 3328184, 4160230, 8320460, 16640920]

約数ペア:

[(1, 16640920), (2, 8320460), (4, 4160230), (5, 3328184), (8, 2080115), (10, 1664092), (20, 832046), (40, 416023)]