1999979744

素因数分解:

$2^5\times 7^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1\times {\mathrm{307}}^1$

素因数の和:680

約数の個数: 96

約数和(自身を含む): 4570030080

約数和(自身を除く): 2570050336

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 127, 224, 229, 254, 307, 458, 508, 614, 889, 916, 1016, 1228, 1603, 1778, 1832, 2032, 2149, 2456, 3206, 3556, 3664, 4064, 4298, 4912, 6412, 7112, 7328, 8596, 9824, 12824, 14224, 17192, 25648, 28448, 29083, 34384, 38989, 51296, 58166, 68768, 70303, 77978, 116332, 140606, 155956, 203581, 232664, 272923, 281212, 311912, 407162, 465328, 492121, 545846, 562424, 623824, 814324, 930656, 984242, 1091692, 1124848, 1247648, 1628648, 1968484, 2183384, 2249696, 3257296, 3936968, 4366768, 6514592, 7873936, 8733536, 8928481, 15747872, 17856962, 35713924, 62499367, 71427848, 124998734, 142855696, 249997468, 285711392, 499994936, 999989872, 1999979744]

約数ペア:

[(1, 1999979744), (2, 999989872), (4, 499994936), (7, 285711392), (8, 249997468), (14, 142855696), (16, 124998734), (28, 71427848), (32, 62499367), (56, 35713924), (112, 17856962), (127, 15747872), (224, 8928481), (229, 8733536), (254, 7873936), (307, 6514592), (458, 4366768), (508, 3936968), (614, 3257296), (889, 2249696), (916, 2183384), (1016, 1968484), (1228, 1628648), (1603, 1247648), (1778, 1124848), (1832, 1091692), (2032, 984242), (2149, 930656), (2456, 814324), (3206, 623824), (3556, 562424), (3664, 545846), (4064, 492121), (4298, 465328), (4912, 407162), (6412, 311912), (7112, 281212), (7328, 272923), (8596, 232664), (9824, 203581), (12824, 155956), (14224, 140606), (17192, 116332), (25648, 77978), (28448, 70303), (29083, 68768), (34384, 58166), (38989, 51296)]