18806401904

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{97}}^1\times {\mathrm{251}}^1\times {\mathrm{2099}}^1$

素因数の和:2478

約数の個数: 80

約数和(自身を含む): 38585030400

約数和(自身を除く): 19778628496

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 97, 184, 194, 251, 368, 388, 502, 776, 1004, 1552, 2008, 2099, 2231, 4016, 4198, 4462, 5773, 8396, 8924, 11546, 16792, 17848, 23092, 24347, 33584, 35696, 46184, 48277, 48694, 92368, 96554, 97388, 193108, 194776, 203603, 386216, 389552, 407206, 526849, 559981, 772432, 814412, 1053698, 1119962, 1628824, 2107396, 2239924, 3257648, 4214792, 4479848, 4682869, 8429584, 8959696, 9365738, 12117527, 18731476, 24235054, 37462952, 48470108, 51104353, 74925904, 96940216, 102208706, 193880432, 204417412, 408834824, 817669648, 1175400119, 2350800238, 4701600476, 9403200952, 18806401904]

約数ペア:

[(1, 18806401904), (2, 9403200952), (4, 4701600476), (8, 2350800238), (16, 1175400119), (23, 817669648), (46, 408834824), (92, 204417412), (97, 193880432), (184, 102208706), (194, 96940216), (251, 74925904), (368, 51104353), (388, 48470108), (502, 37462952), (776, 24235054), (1004, 18731476), (1552, 12117527), (2008, 9365738), (2099, 8959696), (2231, 8429584), (4016, 4682869), (4198, 4479848), (4462, 4214792), (5773, 3257648), (8396, 2239924), (8924, 2107396), (11546, 1628824), (16792, 1119962), (17848, 1053698), (23092, 814412), (24347, 772432), (33584, 559981), (35696, 526849), (46184, 407206), (48277, 389552), (48694, 386216), (92368, 203603), (96554, 194776), (97388, 193108)]