217342720

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:346

約数の個数: 144

約数和(自身を含む): 602800128

約数和(自身を除く): 385457408

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 127, 128, 140, 160, 191, 224, 254, 256, 280, 320, 382, 448, 508, 560, 635, 640, 764, 889, 896, 955, 1016, 1120, 1270, 1280, 1337, 1528, 1778, 1792, 1910, 2032, 2240, 2540, 2674, 3056, 3556, 3820, 4064, 4445, 4480, 5080, 5348, 6112, 6685, 7112, 7640, 8128, 8890, 8960, 10160, 10696, 12224, 13370, 14224, 15280, 16256, 17780, 20320, 21392, 24257, 24448, 26740, 28448, 30560, 32512, 35560, 40640, 42784, 48514, 48896, 53480, 56896, 61120, 71120, 81280, 85568, 97028, 106960, 113792, 121285, 122240, 142240, 162560, 169799, 171136, 194056, 213920, 227584, 242570, 244480, 284480, 339598, 342272, 388112, 427840, 485140, 568960, 679196, 776224, 848995, 855680, 970280, 1137920, 1358392, 1552448, 1697990, 1711360, 1940560, 2716784, 3104896, 3395980, 3881120, 5433568, 6209792, 6791960, 7762240, 10867136, 13583920, 15524480, 21734272, 27167840, 31048960, 43468544, 54335680, 108671360, 217342720]

約数ペア:

[(1, 217342720), (2, 108671360), (4, 54335680), (5, 43468544), (7, 31048960), (8, 27167840), (10, 21734272), (14, 15524480), (16, 13583920), (20, 10867136), (28, 7762240), (32, 6791960), (35, 6209792), (40, 5433568), (56, 3881120), (64, 3395980), (70, 3104896), (80, 2716784), (112, 1940560), (127, 1711360), (128, 1697990), (140, 1552448), (160, 1358392), (191, 1137920), (224, 970280), (254, 855680), (256, 848995), (280, 776224), (320, 679196), (382, 568960), (448, 485140), (508, 427840), (560, 388112), (635, 342272), (640, 339598), (764, 284480), (889, 244480), (896, 242570), (955, 227584), (1016, 213920), (1120, 194056), (1270, 171136), (1280, 169799), (1337, 162560), (1528, 142240), (1778, 122240), (1792, 121285), (1910, 113792), (2032, 106960), (2240, 97028), (2540, 85568), (2674, 81280), (3056, 71120), (3556, 61120), (3820, 56896), (4064, 53480), (4445, 48896), (4480, 48514), (5080, 42784), (5348, 40640), (6112, 35560), (6685, 32512), (7112, 30560), (7640, 28448), (8128, 26740), (8890, 24448), (8960, 24257), (10160, 21392), (10696, 20320), (12224, 17780), (13370, 16256), (14224, 15280)]