39744280

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4993}}^1$

素因数の和:5203

約数の個数: 32

約数和(自身を含む): 89892000

約数和(自身を除く): 50147720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3980, 4993, 7960, 9986, 19972, 24965, 39944, 49930, 99860, 199720, 993607, 1987214, 3974428, 4968035, 7948856, 9936070, 19872140, 39744280]

約数ペア:

[(1, 39744280), (2, 19872140), (4, 9936070), (5, 7948856), (8, 4968035), (10, 3974428), (20, 1987214), (40, 993607), (199, 199720), (398, 99860), (796, 49930), (995, 39944), (1592, 24965), (1990, 19972), (3980, 9986), (4993, 7960)]