40177480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:179

約数の個数: 128

約数和(自身を含む): 109486080

約数和(自身を除く): 69308600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 47, 56, 70, 71, 86, 94, 140, 142, 172, 188, 215, 235, 280, 284, 301, 329, 344, 355, 376, 430, 470, 497, 568, 602, 658, 710, 860, 940, 994, 1204, 1316, 1420, 1505, 1645, 1720, 1880, 1988, 2021, 2408, 2485, 2632, 2840, 3010, 3053, 3290, 3337, 3976, 4042, 4970, 6020, 6106, 6580, 6674, 8084, 9940, 10105, 12040, 12212, 13160, 13348, 14147, 15265, 16168, 16685, 19880, 20210, 21371, 23359, 24424, 26696, 28294, 30530, 33370, 40420, 42742, 46718, 56588, 61060, 66740, 70735, 80840, 85484, 93436, 106855, 113176, 116795, 122120, 133480, 141470, 143491, 170968, 186872, 213710, 233590, 282940, 286982, 427420, 467180, 565880, 573964, 717455, 854840, 934360, 1004437, 1147928, 1434910, 2008874, 2869820, 4017748, 5022185, 5739640, 8035496, 10044370, 20088740, 40177480]

約数ペア:

[(1, 40177480), (2, 20088740), (4, 10044370), (5, 8035496), (7, 5739640), (8, 5022185), (10, 4017748), (14, 2869820), (20, 2008874), (28, 1434910), (35, 1147928), (40, 1004437), (43, 934360), (47, 854840), (56, 717455), (70, 573964), (71, 565880), (86, 467180), (94, 427420), (140, 286982), (142, 282940), (172, 233590), (188, 213710), (215, 186872), (235, 170968), (280, 143491), (284, 141470), (301, 133480), (329, 122120), (344, 116795), (355, 113176), (376, 106855), (430, 93436), (470, 85484), (497, 80840), (568, 70735), (602, 66740), (658, 61060), (710, 56588), (860, 46718), (940, 42742), (994, 40420), (1204, 33370), (1316, 30530), (1420, 28294), (1505, 26696), (1645, 24424), (1720, 23359), (1880, 21371), (1988, 20210), (2021, 19880), (2408, 16685), (2485, 16168), (2632, 15265), (2840, 14147), (3010, 13348), (3053, 13160), (3290, 12212), (3337, 12040), (3976, 10105), (4042, 9940), (4970, 8084), (6020, 6674), (6106, 6580)]