409639510

素因数分解:

$2^1\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{4201}}^1$

素因数の和:4421

約数の個数: 48

約数和(自身を含む): 862250400

約数和(自身を除く): 452610890

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 199, 245, 398, 490, 995, 1393, 1990, 2786, 4201, 6965, 8402, 9751, 13930, 19502, 21005, 29407, 42010, 48755, 58814, 97510, 147035, 205849, 294070, 411698, 835999, 1029245, 1671998, 2058490, 4179995, 5851993, 8359990, 11703986, 29259965, 40963951, 58519930, 81927902, 204819755, 409639510]

約数ペア:

[(1, 409639510), (2, 204819755), (5, 81927902), (7, 58519930), (10, 40963951), (14, 29259965), (35, 11703986), (49, 8359990), (70, 5851993), (98, 4179995), (199, 2058490), (245, 1671998), (398, 1029245), (490, 835999), (995, 411698), (1393, 294070), (1990, 205849), (2786, 147035), (4201, 97510), (6965, 58814), (8402, 48755), (9751, 42010), (13930, 29407), (19502, 21005)]