15920920

素因数分解:

$2^3\times 5^1\times {\mathrm{398023}}^1$

素因数の和:398034

約数の個数: 16

約数和(自身を含む): 35822160

約数和(自身を除く): 19901240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 398023, 796046, 1592092, 1990115, 3184184, 3980230, 7960460, 15920920]

約数ペア:

[(1, 15920920), (2, 7960460), (4, 3980230), (5, 3184184), (8, 1990115), (10, 1592092), (20, 796046), (40, 398023)]