111384280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2216

約数の個数: 64

約数和(自身を含む): 288000000

約数和(自身を除く): 176615720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 199, 280, 398, 796, 995, 1393, 1592, 1990, 1999, 2786, 3980, 3998, 5572, 6965, 7960, 7996, 9995, 11144, 13930, 13993, 15992, 19990, 27860, 27986, 39980, 55720, 55972, 69965, 79960, 111944, 139930, 279860, 397801, 559720, 795602, 1591204, 1989005, 2784607, 3182408, 3978010, 5569214, 7956020, 11138428, 13923035, 15912040, 22276856, 27846070, 55692140, 111384280]

約数ペア:

[(1, 111384280), (2, 55692140), (4, 27846070), (5, 22276856), (7, 15912040), (8, 13923035), (10, 11138428), (14, 7956020), (20, 5569214), (28, 3978010), (35, 3182408), (40, 2784607), (56, 1989005), (70, 1591204), (140, 795602), (199, 559720), (280, 397801), (398, 279860), (796, 139930), (995, 111944), (1393, 79960), (1592, 69965), (1990, 55972), (1999, 55720), (2786, 39980), (3980, 27986), (3998, 27860), (5572, 19990), (6965, 15992), (7960, 13993), (7996, 13930), (9995, 11144)]