280990147160

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{442003}}^1$

素因数の和:442728

約数の個数: 64

約数和(自身を含む): 660672218880

約数和(自身を除く): 379682071720

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 691, 920, 1382, 2764, 3455, 5528, 6910, 13820, 15893, 27640, 31786, 63572, 79465, 127144, 158930, 317860, 442003, 635720, 884006, 1768012, 2210015, 3536024, 4420030, 8840060, 10166069, 17680120, 20332138, 40664276, 50830345, 81328552, 101660690, 203321380, 305424073, 406642760, 610848146, 1221696292, 1527120365, 2443392584, 3054240730, 6108481460, 7024753679, 12216962920, 14049507358, 28099014716, 35123768395, 56198029432, 70247536790, 140495073580, 280990147160]

約数ペア:

[(1, 280990147160), (2, 140495073580), (4, 70247536790), (5, 56198029432), (8, 35123768395), (10, 28099014716), (20, 14049507358), (23, 12216962920), (40, 7024753679), (46, 6108481460), (92, 3054240730), (115, 2443392584), (184, 1527120365), (230, 1221696292), (460, 610848146), (691, 406642760), (920, 305424073), (1382, 203321380), (2764, 101660690), (3455, 81328552), (5528, 50830345), (6910, 40664276), (13820, 20332138), (15893, 17680120), (27640, 10166069), (31786, 8840060), (63572, 4420030), (79465, 3536024), (127144, 2210015), (158930, 1768012), (317860, 884006), (442003, 635720)]