643422720

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{421}}^1$

素因数の和:646

約数の個数: 160

約数和(自身を含む): 2072188800

約数和(自身を除く): 1428766080

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 199, 240, 256, 320, 384, 398, 421, 480, 512, 597, 640, 768, 796, 842, 960, 995, 1194, 1263, 1280, 1536, 1592, 1684, 1920, 1990, 2105, 2388, 2526, 2560, 2985, 3184, 3368, 3840, 3980, 4210, 4776, 5052, 5970, 6315, 6368, 6736, 7680, 7960, 8420, 9552, 10104, 11940, 12630, 12736, 13472, 15920, 16840, 19104, 20208, 23880, 25260, 25472, 26944, 31840, 33680, 38208, 40416, 47760, 50520, 50944, 53888, 63680, 67360, 76416, 80832, 83779, 95520, 101040, 101888, 107776, 127360, 134720, 152832, 161664, 167558, 191040, 202080, 215552, 251337, 254720, 269440, 305664, 323328, 335116, 382080, 404160, 418895, 502674, 509440, 538880, 646656, 670232, 764160, 808320, 837790, 1005348, 1077760, 1256685, 1340464, 1528320, 1616640, 1675580, 2010696, 2513370, 2680928, 3233280, 3351160, 4021392, 5026740, 5361856, 6702320, 8042784, 10053480, 10723712, 13404640, 16085568, 20106960, 21447424, 26809280, 32171136, 40213920, 42894848, 53618560, 64342272, 80427840, 107237120, 128684544, 160855680, 214474240, 321711360, 643422720]

約数ペア:

[(1, 643422720), (2, 321711360), (3, 214474240), (4, 160855680), (5, 128684544), (6, 107237120), (8, 80427840), (10, 64342272), (12, 53618560), (15, 42894848), (16, 40213920), (20, 32171136), (24, 26809280), (30, 21447424), (32, 20106960), (40, 16085568), (48, 13404640), (60, 10723712), (64, 10053480), (80, 8042784), (96, 6702320), (120, 5361856), (128, 5026740), (160, 4021392), (192, 3351160), (199, 3233280), (240, 2680928), (256, 2513370), (320, 2010696), (384, 1675580), (398, 1616640), (421, 1528320), (480, 1340464), (512, 1256685), (597, 1077760), (640, 1005348), (768, 837790), (796, 808320), (842, 764160), (960, 670232), (995, 646656), (1194, 538880), (1263, 509440), (1280, 502674), (1536, 418895), (1592, 404160), (1684, 382080), (1920, 335116), (1990, 323328), (2105, 305664), (2388, 269440), (2526, 254720), (2560, 251337), (2985, 215552), (3184, 202080), (3368, 191040), (3840, 167558), (3980, 161664), (4210, 152832), (4776, 134720), (5052, 127360), (5970, 107776), (6315, 101888), (6368, 101040), (6736, 95520), (7680, 83779), (7960, 80832), (8420, 76416), (9552, 67360), (10104, 63680), (11940, 53888), (12630, 50944), (12736, 50520), (13472, 47760), (15920, 40416), (16840, 38208), (19104, 33680), (20208, 31840), (23880, 26944), (25260, 25472)]