1290087680

素因数分解:

$2^8\times 5^1\times 7^2\times {\mathrm{67}}^1\times {\mathrm{307}}^1$

素因数の和:409

約数の個数: 216

約数和(自身を含む): 3660215328

約数和(自身を除く): 2370127648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 67, 70, 80, 98, 112, 128, 134, 140, 160, 196, 224, 245, 256, 268, 280, 307, 320, 335, 392, 448, 469, 490, 536, 560, 614, 640, 670, 784, 896, 938, 980, 1072, 1120, 1228, 1280, 1340, 1535, 1568, 1792, 1876, 1960, 2144, 2149, 2240, 2345, 2456, 2680, 3070, 3136, 3283, 3752, 3920, 4288, 4298, 4480, 4690, 4912, 5360, 6140, 6272, 6566, 7504, 7840, 8576, 8596, 8960, 9380, 9824, 10720, 10745, 12280, 12544, 13132, 15008, 15043, 15680, 16415, 17152, 17192, 18760, 19648, 20569, 21440, 21490, 24560, 26264, 30016, 30086, 31360, 32830, 34384, 37520, 39296, 41138, 42880, 42980, 49120, 52528, 60032, 60172, 62720, 65660, 68768, 75040, 75215, 78592, 82276, 85760, 85960, 98240, 102845, 105056, 120064, 120344, 131320, 137536, 143983, 150080, 150430, 164552, 171920, 196480, 205690, 210112, 240688, 262640, 275072, 287966, 300160, 300860, 329104, 343840, 392960, 411380, 420224, 481376, 525280, 550144, 575932, 600320, 601720, 658208, 687680, 719915, 822760, 840448, 962752, 1007881, 1050560, 1151864, 1203440, 1316416, 1375360, 1439830, 1645520, 1925504, 2015762, 2101120, 2303728, 2406880, 2632832, 2750720, 2879660, 3291040, 3851008, 4031524, 4202240, 4607456, 4813760, 5039405, 5265664, 5759320, 6582080, 8063048, 9214912, 9627520, 10078810, 11518640, 13164160, 16126096, 18429824, 19255040, 20157620, 23037280, 26328320, 32252192, 36859648, 40315240, 46074560, 64504384, 80630480, 92149120, 129008768, 161260960, 184298240, 258017536, 322521920, 645043840, 1290087680]

約数ペア:

[(1, 1290087680), (2, 645043840), (4, 322521920), (5, 258017536), (7, 184298240), (8, 161260960), (10, 129008768), (14, 92149120), (16, 80630480), (20, 64504384), (28, 46074560), (32, 40315240), (35, 36859648), (40, 32252192), (49, 26328320), (56, 23037280), (64, 20157620), (67, 19255040), (70, 18429824), (80, 16126096), (98, 13164160), (112, 11518640), (128, 10078810), (134, 9627520), (140, 9214912), (160, 8063048), (196, 6582080), (224, 5759320), (245, 5265664), (256, 5039405), (268, 4813760), (280, 4607456), (307, 4202240), (320, 4031524), (335, 3851008), (392, 3291040), (448, 2879660), (469, 2750720), (490, 2632832), (536, 2406880), (560, 2303728), (614, 2101120), (640, 2015762), (670, 1925504), (784, 1645520), (896, 1439830), (938, 1375360), (980, 1316416), (1072, 1203440), (1120, 1151864), (1228, 1050560), (1280, 1007881), (1340, 962752), (1535, 840448), (1568, 822760), (1792, 719915), (1876, 687680), (1960, 658208), (2144, 601720), (2149, 600320), (2240, 575932), (2345, 550144), (2456, 525280), (2680, 481376), (3070, 420224), (3136, 411380), (3283, 392960), (3752, 343840), (3920, 329104), (4288, 300860), (4298, 300160), (4480, 287966), (4690, 275072), (4912, 262640), (5360, 240688), (6140, 210112), (6272, 205690), (6566, 196480), (7504, 171920), (7840, 164552), (8576, 150430), (8596, 150080), (8960, 143983), (9380, 137536), (9824, 131320), (10720, 120344), (10745, 120064), (12280, 105056), (12544, 102845), (13132, 98240), (15008, 85960), (15043, 85760), (15680, 82276), (16415, 78592), (17152, 75215), (17192, 75040), (18760, 68768), (19648, 65660), (20569, 62720), (21440, 60172), (21490, 60032), (24560, 52528), (26264, 49120), (30016, 42980), (30086, 42880), (31360, 41138), (32830, 39296), (34384, 37520)]