261339120

素因数分解:

$2^4\times 3^2\times 5^1\times 7^1\times {\mathrm{51853}}^1$

素因数の和:51879

約数の個数: 120

約数和(自身を含む): 1003063776

約数和(自身を除く): 741724656

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 45, 48, 56, 60, 63, 70, 72, 80, 84, 90, 105, 112, 120, 126, 140, 144, 168, 180, 210, 240, 252, 280, 315, 336, 360, 420, 504, 560, 630, 720, 840, 1008, 1260, 1680, 2520, 5040, 51853, 103706, 155559, 207412, 259265, 311118, 362971, 414824, 466677, 518530, 622236, 725942, 777795, 829648, 933354, 1037060, 1088913, 1244472, 1451884, 1555590, 1814855, 1866708, 2074120, 2177826, 2333385, 2488944, 2903768, 3111180, 3266739, 3629710, 3733416, 4148240, 4355652, 4666770, 5444565, 5807536, 6222360, 6533478, 7259420, 7466832, 8711304, 9333540, 10889130, 12444720, 13066956, 14518840, 16333695, 17422608, 18667080, 21778260, 26133912, 29037680, 32667390, 37334160, 43556520, 52267824, 65334780, 87113040, 130669560, 261339120]

約数ペア:

[(1, 261339120), (2, 130669560), (3, 87113040), (4, 65334780), (5, 52267824), (6, 43556520), (7, 37334160), (8, 32667390), (9, 29037680), (10, 26133912), (12, 21778260), (14, 18667080), (15, 17422608), (16, 16333695), (18, 14518840), (20, 13066956), (21, 12444720), (24, 10889130), (28, 9333540), (30, 8711304), (35, 7466832), (36, 7259420), (40, 6533478), (42, 6222360), (45, 5807536), (48, 5444565), (56, 4666770), (60, 4355652), (63, 4148240), (70, 3733416), (72, 3629710), (80, 3266739), (84, 3111180), (90, 2903768), (105, 2488944), (112, 2333385), (120, 2177826), (126, 2074120), (140, 1866708), (144, 1814855), (168, 1555590), (180, 1451884), (210, 1244472), (240, 1088913), (252, 1037060), (280, 933354), (315, 829648), (336, 777795), (360, 725942), (420, 622236), (504, 518530), (560, 466677), (630, 414824), (720, 362971), (840, 311118), (1008, 259265), (1260, 207412), (1680, 155559), (2520, 103706), (5040, 51853)]