38820920

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4877}}^1$

素因数の和:5087

約数の個数: 32

約数和(自身を含む): 87804000

約数和(自身を除く): 48983080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 4877, 7960, 9754, 19508, 24385, 39016, 48770, 97540, 195080, 970523, 1941046, 3882092, 4852615, 7764184, 9705230, 19410460, 38820920]

約数ペア:

[(1, 38820920), (2, 19410460), (4, 9705230), (5, 7764184), (8, 4852615), (10, 3882092), (20, 1941046), (40, 970523), (199, 195080), (398, 97540), (796, 48770), (995, 39016), (1592, 24385), (1990, 19508), (3980, 9754), (4877, 7960)]