209918720

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{877}}^1$

素因数の和:926

約数の個数: 144

約数和(自身を含む): 581460768

約数和(自身を除く): 371542048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 32, 34, 40, 44, 55, 64, 68, 80, 85, 88, 110, 128, 136, 160, 170, 176, 187, 220, 256, 272, 320, 340, 352, 374, 440, 544, 640, 680, 704, 748, 877, 880, 935, 1088, 1280, 1360, 1408, 1496, 1754, 1760, 1870, 2176, 2720, 2816, 2992, 3508, 3520, 3740, 4352, 4385, 5440, 5984, 7016, 7040, 7480, 8770, 9647, 10880, 11968, 14032, 14080, 14909, 14960, 17540, 19294, 21760, 23936, 28064, 29818, 29920, 35080, 38588, 47872, 48235, 56128, 59636, 59840, 70160, 74545, 77176, 96470, 112256, 119272, 119680, 140320, 149090, 154352, 163999, 192940, 224512, 238544, 239360, 280640, 298180, 308704, 327998, 385880, 477088, 561280, 596360, 617408, 655996, 771760, 819995, 954176, 1122560, 1192720, 1234816, 1311992, 1543520, 1639990, 1908352, 2385440, 2469632, 2623984, 3087040, 3279980, 3816704, 4770880, 5247968, 6174080, 6559960, 9541760, 10495936, 12348160, 13119920, 19083520, 20991872, 26239840, 41983744, 52479680, 104959360, 209918720]

約数ペア:

[(1, 209918720), (2, 104959360), (4, 52479680), (5, 41983744), (8, 26239840), (10, 20991872), (11, 19083520), (16, 13119920), (17, 12348160), (20, 10495936), (22, 9541760), (32, 6559960), (34, 6174080), (40, 5247968), (44, 4770880), (55, 3816704), (64, 3279980), (68, 3087040), (80, 2623984), (85, 2469632), (88, 2385440), (110, 1908352), (128, 1639990), (136, 1543520), (160, 1311992), (170, 1234816), (176, 1192720), (187, 1122560), (220, 954176), (256, 819995), (272, 771760), (320, 655996), (340, 617408), (352, 596360), (374, 561280), (440, 477088), (544, 385880), (640, 327998), (680, 308704), (704, 298180), (748, 280640), (877, 239360), (880, 238544), (935, 224512), (1088, 192940), (1280, 163999), (1360, 154352), (1408, 149090), (1496, 140320), (1754, 119680), (1760, 119272), (1870, 112256), (2176, 96470), (2720, 77176), (2816, 74545), (2992, 70160), (3508, 59840), (3520, 59636), (3740, 56128), (4352, 48235), (4385, 47872), (5440, 38588), (5984, 35080), (7016, 29920), (7040, 29818), (7480, 28064), (8770, 23936), (9647, 21760), (10880, 19294), (11968, 17540), (14032, 14960), (14080, 14909)]