1365140

素因数分解:

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

素因数の和:229

約数の個数: 48

約数和(自身を含む): 3360000

約数和(自身を除く): 1994860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 199, 245, 343, 398, 490, 686, 796, 980, 995, 1372, 1393, 1715, 1990, 2786, 3430, 3980, 5572, 6860, 6965, 9751, 13930, 19502, 27860, 39004, 48755, 68257, 97510, 136514, 195020, 273028, 341285, 682570, 1365140]

約数ペア:

[(1, 1365140), (2, 682570), (4, 341285), (5, 273028), (7, 195020), (10, 136514), (14, 97510), (20, 68257), (28, 48755), (35, 39004), (49, 27860), (70, 19502), (98, 13930), (140, 9751), (196, 6965), (199, 6860), (245, 5572), (343, 3980), (398, 3430), (490, 2786), (686, 1990), (796, 1715), (980, 1393), (995, 1372)]