20190431480

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{643}}^1\times {\mathrm{757}}^1$

素因数の和:1489

約数の個数: 128

約数和(自身を含む): 49029986880

約数和(自身を除く): 28839555400

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 61, 68, 85, 122, 136, 170, 244, 305, 340, 488, 610, 643, 680, 757, 1037, 1220, 1286, 1514, 2074, 2440, 2572, 3028, 3215, 3785, 4148, 5144, 5185, 6056, 6430, 7570, 8296, 10370, 10931, 12860, 12869, 15140, 20740, 21862, 25720, 25738, 30280, 39223, 41480, 43724, 46177, 51476, 54655, 64345, 78446, 87448, 92354, 102952, 109310, 128690, 156892, 184708, 196115, 218620, 230885, 257380, 313784, 369416, 392230, 437240, 461770, 486751, 514760, 666791, 784460, 785009, 923540, 973502, 1333582, 1568920, 1570018, 1847080, 1947004, 2433755, 2667164, 3140036, 3333955, 3894008, 3925045, 4867510, 5334328, 6280072, 6667910, 7850090, 8274767, 9735020, 13335820, 15700180, 16549534, 19470040, 26671640, 29691811, 31400360, 33099068, 41373835, 59383622, 66198136, 82747670, 118767244, 148459055, 165495340, 237534488, 296918110, 330990680, 504760787, 593836220, 1009521574, 1187672440, 2019043148, 2523803935, 4038086296, 5047607870, 10095215740, 20190431480]

約数ペア:

[(1, 20190431480), (2, 10095215740), (4, 5047607870), (5, 4038086296), (8, 2523803935), (10, 2019043148), (17, 1187672440), (20, 1009521574), (34, 593836220), (40, 504760787), (61, 330990680), (68, 296918110), (85, 237534488), (122, 165495340), (136, 148459055), (170, 118767244), (244, 82747670), (305, 66198136), (340, 59383622), (488, 41373835), (610, 33099068), (643, 31400360), (680, 29691811), (757, 26671640), (1037, 19470040), (1220, 16549534), (1286, 15700180), (1514, 13335820), (2074, 9735020), (2440, 8274767), (2572, 7850090), (3028, 6667910), (3215, 6280072), (3785, 5334328), (4148, 4867510), (5144, 3925045), (5185, 3894008), (6056, 3333955), (6430, 3140036), (7570, 2667164), (8296, 2433755), (10370, 1947004), (10931, 1847080), (12860, 1570018), (12869, 1568920), (15140, 1333582), (20740, 973502), (21862, 923540), (25720, 785009), (25738, 784460), (30280, 666791), (39223, 514760), (41480, 486751), (43724, 461770), (46177, 437240), (51476, 392230), (54655, 369416), (64345, 313784), (78446, 257380), (87448, 230885), (92354, 218620), (102952, 196115), (109310, 184708), (128690, 156892)]