20171760

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{12007}}^1$

素因数の和:12030

約数の個数: 80

約数和(自身を含む): 71471616

約数和(自身を除く): 51299856

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 12007, 24014, 36021, 48028, 60035, 72042, 84049, 96056, 120070, 144084, 168098, 180105, 192112, 240140, 252147, 288168, 336196, 360210, 420245, 480280, 504294, 576336, 672392, 720420, 840490, 960560, 1008588, 1260735, 1344784, 1440840, 1680980, 2017176, 2521470, 2881680, 3361960, 4034352, 5042940, 6723920, 10085880, 20171760]

約数ペア:

[(1, 20171760), (2, 10085880), (3, 6723920), (4, 5042940), (5, 4034352), (6, 3361960), (7, 2881680), (8, 2521470), (10, 2017176), (12, 1680980), (14, 1440840), (15, 1344784), (16, 1260735), (20, 1008588), (21, 960560), (24, 840490), (28, 720420), (30, 672392), (35, 576336), (40, 504294), (42, 480280), (48, 420245), (56, 360210), (60, 336196), (70, 288168), (80, 252147), (84, 240140), (105, 192112), (112, 180105), (120, 168098), (140, 144084), (168, 120070), (210, 96056), (240, 84049), (280, 72042), (336, 60035), (420, 48028), (560, 36021), (840, 24014), (1680, 12007)]