20899683856

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{103}}^1\times {\mathrm{647}}^1\times {\mathrm{1153}}^1$

素因数の和:1928

約数の個数: 80

約数和(自身を含む): 43395865344

約数和(自身を除く): 22496181488

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 103, 136, 206, 272, 412, 647, 824, 1153, 1294, 1648, 1751, 2306, 2588, 3502, 4612, 5176, 7004, 9224, 10352, 10999, 14008, 18448, 19601, 21998, 28016, 39202, 43996, 66641, 78404, 87992, 118759, 133282, 156808, 175984, 237518, 266564, 313616, 475036, 533128, 745991, 950072, 1066256, 1132897, 1491982, 1900144, 2018903, 2265794, 2983964, 4037806, 4531588, 5967928, 8075612, 9063176, 11935856, 12681847, 16151224, 18126352, 25363694, 32302448, 50727388, 76837073, 101454776, 153674146, 202909552, 307348292, 614696584, 1229393168, 1306230241, 2612460482, 5224920964, 10449841928, 20899683856]

約数ペア:

[(1, 20899683856), (2, 10449841928), (4, 5224920964), (8, 2612460482), (16, 1306230241), (17, 1229393168), (34, 614696584), (68, 307348292), (103, 202909552), (136, 153674146), (206, 101454776), (272, 76837073), (412, 50727388), (647, 32302448), (824, 25363694), (1153, 18126352), (1294, 16151224), (1648, 12681847), (1751, 11935856), (2306, 9063176), (2588, 8075612), (3502, 5967928), (4612, 4531588), (5176, 4037806), (7004, 2983964), (9224, 2265794), (10352, 2018903), (10999, 1900144), (14008, 1491982), (18448, 1132897), (19601, 1066256), (21998, 950072), (28016, 745991), (39202, 533128), (43996, 475036), (66641, 313616), (78404, 266564), (87992, 237518), (118759, 175984), (133282, 156808)]