20171663824

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{499}}^1\times {\mathrm{1783}}^1$

素因数の和:2412

約数の個数: 80

約数和(自身を含む): 42584080000

約数和(自身を除く): 22412416176

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 109, 208, 218, 436, 499, 872, 998, 1417, 1744, 1783, 1996, 2834, 3566, 3992, 5668, 6487, 7132, 7984, 11336, 12974, 14264, 22672, 23179, 25948, 28528, 46358, 51896, 54391, 92716, 103792, 108782, 185432, 194347, 217564, 370864, 388694, 435128, 707083, 777388, 870256, 889717, 1414166, 1554776, 1779434, 2526511, 2828332, 3109552, 3558868, 5053022, 5656664, 7117736, 10106044, 11313328, 11566321, 14235472, 20212088, 23132642, 40424176, 46265284, 92530568, 96979153, 185061136, 193958306, 387916612, 775833224, 1260728989, 1551666448, 2521457978, 5042915956, 10085831912, 20171663824]

約数ペア:

[(1, 20171663824), (2, 10085831912), (4, 5042915956), (8, 2521457978), (13, 1551666448), (16, 1260728989), (26, 775833224), (52, 387916612), (104, 193958306), (109, 185061136), (208, 96979153), (218, 92530568), (436, 46265284), (499, 40424176), (872, 23132642), (998, 20212088), (1417, 14235472), (1744, 11566321), (1783, 11313328), (1996, 10106044), (2834, 7117736), (3566, 5656664), (3992, 5053022), (5668, 3558868), (6487, 3109552), (7132, 2828332), (7984, 2526511), (11336, 1779434), (12974, 1554776), (14264, 1414166), (22672, 889717), (23179, 870256), (25948, 777388), (28528, 707083), (46358, 435128), (51896, 388694), (54391, 370864), (92716, 217564), (103792, 194347), (108782, 185432)]