198020920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{24877}}^1$

素因数の和:25087

約数の個数: 32

約数和(自身を含む): 447804000

約数和(自身を除く): 249783080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 7960, 24877, 49754, 99508, 124385, 199016, 248770, 497540, 995080, 4950523, 9901046, 19802092, 24752615, 39604184, 49505230, 99010460, 198020920]

約数ペア:

[(1, 198020920), (2, 99010460), (4, 49505230), (5, 39604184), (8, 24752615), (10, 19802092), (20, 9901046), (40, 4950523), (199, 995080), (398, 497540), (796, 248770), (995, 199016), (1592, 124385), (1990, 99508), (3980, 49754), (7960, 24877)]