1997297792

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{307}}^1$

素因数の和:518

約数の個数: 128

約数和(自身を含む): 4682240640

約数和(自身を除く): 2684942848

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 137, 212, 224, 274, 307, 371, 424, 448, 548, 614, 742, 848, 896, 959, 1096, 1228, 1484, 1696, 1918, 2149, 2192, 2456, 2968, 3392, 3836, 4298, 4384, 4912, 5936, 6784, 7261, 7672, 8596, 8768, 9824, 11872, 14522, 15344, 16271, 17192, 17536, 19648, 23744, 29044, 30688, 32542, 34384, 39296, 42059, 47488, 50827, 58088, 61376, 65084, 68768, 84118, 101654, 113897, 116176, 122752, 130168, 137536, 168236, 203308, 227794, 232352, 260336, 275072, 294413, 336472, 406616, 455588, 464704, 520672, 588826, 672944, 813232, 911176, 929408, 1041344, 1177652, 1345888, 1626464, 1822352, 2082688, 2229127, 2355304, 2691776, 3252928, 3644704, 4458254, 4710608, 5383552, 6505856, 7289408, 8916508, 9421216, 14578816, 15603889, 17833016, 18842432, 31207778, 35666032, 37684864, 62415556, 71332064, 124831112, 142664128, 249662224, 285328256, 499324448, 998648896, 1997297792]

約数ペア:

[(1, 1997297792), (2, 998648896), (4, 499324448), (7, 285328256), (8, 249662224), (14, 142664128), (16, 124831112), (28, 71332064), (32, 62415556), (53, 37684864), (56, 35666032), (64, 31207778), (106, 18842432), (112, 17833016), (128, 15603889), (137, 14578816), (212, 9421216), (224, 8916508), (274, 7289408), (307, 6505856), (371, 5383552), (424, 4710608), (448, 4458254), (548, 3644704), (614, 3252928), (742, 2691776), (848, 2355304), (896, 2229127), (959, 2082688), (1096, 1822352), (1228, 1626464), (1484, 1345888), (1696, 1177652), (1918, 1041344), (2149, 929408), (2192, 911176), (2456, 813232), (2968, 672944), (3392, 588826), (3836, 520672), (4298, 464704), (4384, 455588), (4912, 406616), (5936, 336472), (6784, 294413), (7261, 275072), (7672, 260336), (8596, 232352), (8768, 227794), (9824, 203308), (11872, 168236), (14522, 137536), (15344, 130168), (16271, 122752), (17192, 116176), (17536, 113897), (19648, 101654), (23744, 84118), (29044, 68768), (30688, 65084), (32542, 61376), (34384, 58088), (39296, 50827), (42059, 47488)]