207980720

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{109}}^1$

素因数の和:223

約数の個数: 160

約数和(自身を含む): 548000640

約数和(自身を除く): 340019920

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 23, 34, 40, 46, 61, 68, 80, 85, 92, 109, 115, 122, 136, 170, 184, 218, 230, 244, 272, 305, 340, 368, 391, 436, 460, 488, 545, 610, 680, 782, 872, 920, 976, 1037, 1090, 1220, 1360, 1403, 1564, 1744, 1840, 1853, 1955, 2074, 2180, 2440, 2507, 2806, 3128, 3706, 3910, 4148, 4360, 4880, 5014, 5185, 5612, 6256, 6649, 7015, 7412, 7820, 8296, 8720, 9265, 10028, 10370, 11224, 12535, 13298, 14030, 14824, 15640, 16592, 18530, 20056, 20740, 22448, 23851, 25070, 26596, 28060, 29648, 31280, 33245, 37060, 40112, 41480, 42619, 47702, 50140, 53192, 56120, 66490, 74120, 82960, 85238, 95404, 100280, 106384, 112240, 113033, 119255, 132980, 148240, 152927, 170476, 190808, 200560, 213095, 226066, 238510, 265960, 305854, 340952, 381616, 426190, 452132, 477020, 531920, 565165, 611708, 681904, 764635, 852380, 904264, 954040, 1130330, 1223416, 1529270, 1704760, 1808528, 1908080, 2260660, 2446832, 2599759, 3058540, 3409520, 4521320, 5199518, 6117080, 9042640, 10399036, 12234160, 12998795, 20798072, 25997590, 41596144, 51995180, 103990360, 207980720]

約数ペア:

[(1, 207980720), (2, 103990360), (4, 51995180), (5, 41596144), (8, 25997590), (10, 20798072), (16, 12998795), (17, 12234160), (20, 10399036), (23, 9042640), (34, 6117080), (40, 5199518), (46, 4521320), (61, 3409520), (68, 3058540), (80, 2599759), (85, 2446832), (92, 2260660), (109, 1908080), (115, 1808528), (122, 1704760), (136, 1529270), (170, 1223416), (184, 1130330), (218, 954040), (230, 904264), (244, 852380), (272, 764635), (305, 681904), (340, 611708), (368, 565165), (391, 531920), (436, 477020), (460, 452132), (488, 426190), (545, 381616), (610, 340952), (680, 305854), (782, 265960), (872, 238510), (920, 226066), (976, 213095), (1037, 200560), (1090, 190808), (1220, 170476), (1360, 152927), (1403, 148240), (1564, 132980), (1744, 119255), (1840, 113033), (1853, 112240), (1955, 106384), (2074, 100280), (2180, 95404), (2440, 85238), (2507, 82960), (2806, 74120), (3128, 66490), (3706, 56120), (3910, 53192), (4148, 50140), (4360, 47702), (4880, 42619), (5014, 41480), (5185, 40112), (5612, 37060), (6256, 33245), (6649, 31280), (7015, 29648), (7412, 28060), (7820, 26596), (8296, 25070), (8720, 23851), (9265, 22448), (10028, 20740), (10370, 20056), (11224, 18530), (12535, 16592), (13298, 15640), (14030, 14824)]