249291280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2237}}^1$

素因数の和:2456

約数の個数: 80

約数和(自身を含む): 666028800

約数和(自身を除く): 416737520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 199, 280, 398, 560, 796, 995, 1393, 1592, 1990, 2237, 2786, 3184, 3980, 4474, 5572, 6965, 7960, 8948, 11144, 11185, 13930, 15659, 15920, 17896, 22288, 22370, 27860, 31318, 35792, 44740, 55720, 62636, 78295, 89480, 111440, 125272, 156590, 178960, 250544, 313180, 445163, 626360, 890326, 1252720, 1780652, 2225815, 3116141, 3561304, 4451630, 6232282, 7122608, 8903260, 12464564, 15580705, 17806520, 24929128, 31161410, 35613040, 49858256, 62322820, 124645640, 249291280]

約数ペア:

[(1, 249291280), (2, 124645640), (4, 62322820), (5, 49858256), (7, 35613040), (8, 31161410), (10, 24929128), (14, 17806520), (16, 15580705), (20, 12464564), (28, 8903260), (35, 7122608), (40, 6232282), (56, 4451630), (70, 3561304), (80, 3116141), (112, 2225815), (140, 1780652), (199, 1252720), (280, 890326), (398, 626360), (560, 445163), (796, 313180), (995, 250544), (1393, 178960), (1592, 156590), (1990, 125272), (2237, 111440), (2786, 89480), (3184, 78295), (3980, 62636), (4474, 55720), (5572, 44740), (6965, 35792), (7960, 31318), (8948, 27860), (11144, 22370), (11185, 22288), (13930, 17896), (15659, 15920)]