178561620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{479}}^1$

素因数の和:622

約数の個数: 144

約数和(自身を含む): 576576000

約数和(自身を除く): 398014380

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 109, 114, 171, 180, 190, 218, 228, 285, 327, 342, 380, 436, 479, 545, 570, 654, 684, 855, 958, 981, 1090, 1140, 1308, 1437, 1635, 1710, 1916, 1962, 2071, 2180, 2395, 2874, 3270, 3420, 3924, 4142, 4311, 4790, 4905, 5748, 6213, 6540, 7185, 8284, 8622, 9101, 9580, 9810, 10355, 12426, 14370, 17244, 18202, 18639, 19620, 20710, 21555, 24852, 27303, 28740, 31065, 36404, 37278, 41420, 43110, 45505, 52211, 54606, 62130, 74556, 81909, 86220, 91010, 93195, 104422, 109212, 124260, 136515, 156633, 163818, 182020, 186390, 208844, 261055, 273030, 313266, 327636, 372780, 409545, 469899, 522110, 546060, 626532, 783165, 819090, 939798, 992009, 1044220, 1566330, 1638180, 1879596, 1984018, 2349495, 2976027, 3132660, 3968036, 4698990, 4960045, 5952054, 8928081, 9397980, 9920090, 11904108, 14880135, 17856162, 19840180, 29760270, 35712324, 44640405, 59520540, 89280810, 178561620]

約数ペア:

[(1, 178561620), (2, 89280810), (3, 59520540), (4, 44640405), (5, 35712324), (6, 29760270), (9, 19840180), (10, 17856162), (12, 14880135), (15, 11904108), (18, 9920090), (19, 9397980), (20, 8928081), (30, 5952054), (36, 4960045), (38, 4698990), (45, 3968036), (57, 3132660), (60, 2976027), (76, 2349495), (90, 1984018), (95, 1879596), (109, 1638180), (114, 1566330), (171, 1044220), (180, 992009), (190, 939798), (218, 819090), (228, 783165), (285, 626532), (327, 546060), (342, 522110), (380, 469899), (436, 409545), (479, 372780), (545, 327636), (570, 313266), (654, 273030), (684, 261055), (855, 208844), (958, 186390), (981, 182020), (1090, 163818), (1140, 156633), (1308, 136515), (1437, 124260), (1635, 109212), (1710, 104422), (1916, 93195), (1962, 91010), (2071, 86220), (2180, 81909), (2395, 74556), (2874, 62130), (3270, 54606), (3420, 52211), (3924, 45505), (4142, 43110), (4311, 41420), (4790, 37278), (4905, 36404), (5748, 31065), (6213, 28740), (6540, 27303), (7185, 24852), (8284, 21555), (8622, 20710), (9101, 19620), (9580, 18639), (9810, 18202), (10355, 17244), (12426, 14370)]