1388791880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{4783}}^1$

素因数の和:4879

約数の個数: 128

約数和(自身を含む): 3844039680

約数和(自身を除く): 2455247800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 17, 20, 28, 34, 35, 40, 56, 61, 68, 70, 85, 119, 122, 136, 140, 170, 238, 244, 280, 305, 340, 427, 476, 488, 595, 610, 680, 854, 952, 1037, 1190, 1220, 1708, 2074, 2135, 2380, 2440, 3416, 4148, 4270, 4760, 4783, 5185, 7259, 8296, 8540, 9566, 10370, 14518, 17080, 19132, 20740, 23915, 29036, 33481, 36295, 38264, 41480, 47830, 58072, 66962, 72590, 81311, 95660, 133924, 145180, 162622, 167405, 191320, 267848, 290360, 291763, 325244, 334810, 406555, 569177, 583526, 650488, 669620, 813110, 1138354, 1167052, 1339240, 1458815, 1626220, 2042341, 2276708, 2334104, 2845885, 2917630, 3252440, 4084682, 4553416, 4959971, 5691770, 5835260, 8169364, 9919942, 10211705, 11383540, 11670520, 16338728, 19839884, 20423410, 22767080, 24799855, 34719797, 39679768, 40846820, 49599710, 69439594, 81693640, 99199420, 138879188, 173598985, 198398840, 277758376, 347197970, 694395940, 1388791880]

約数ペア:

[(1, 1388791880), (2, 694395940), (4, 347197970), (5, 277758376), (7, 198398840), (8, 173598985), (10, 138879188), (14, 99199420), (17, 81693640), (20, 69439594), (28, 49599710), (34, 40846820), (35, 39679768), (40, 34719797), (56, 24799855), (61, 22767080), (68, 20423410), (70, 19839884), (85, 16338728), (119, 11670520), (122, 11383540), (136, 10211705), (140, 9919942), (170, 8169364), (238, 5835260), (244, 5691770), (280, 4959971), (305, 4553416), (340, 4084682), (427, 3252440), (476, 2917630), (488, 2845885), (595, 2334104), (610, 2276708), (680, 2042341), (854, 1626220), (952, 1458815), (1037, 1339240), (1190, 1167052), (1220, 1138354), (1708, 813110), (2074, 669620), (2135, 650488), (2380, 583526), (2440, 569177), (3416, 406555), (4148, 334810), (4270, 325244), (4760, 291763), (4783, 290360), (5185, 267848), (7259, 191320), (8296, 167405), (8540, 162622), (9566, 145180), (10370, 133924), (14518, 95660), (17080, 81311), (19132, 72590), (20740, 66962), (23915, 58072), (29036, 47830), (33481, 41480), (36295, 38264)]