20165127920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{1307}}^1\times {\mathrm{27551}}^1$

素因数の和:28878

約数の個数: 80

約数和(自身を含む): 53624567808

約数和(自身を除く): 33459439888

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 1307, 2614, 5228, 6535, 9149, 10456, 13070, 18298, 20912, 26140, 27551, 36596, 45745, 52280, 55102, 73192, 91490, 104560, 110204, 137755, 146384, 182980, 192857, 220408, 275510, 365960, 385714, 440816, 551020, 731920, 771428, 964285, 1102040, 1542856, 1928570, 2204080, 3085712, 3857140, 7714280, 15428560, 36009157, 72018314, 144036628, 180045785, 252064099, 288073256, 360091570, 504128198, 576146512, 720183140, 1008256396, 1260320495, 1440366280, 2016512792, 2520640990, 2880732560, 4033025584, 5041281980, 10082563960, 20165127920]

約数ペア:

[(1, 20165127920), (2, 10082563960), (4, 5041281980), (5, 4033025584), (7, 2880732560), (8, 2520640990), (10, 2016512792), (14, 1440366280), (16, 1260320495), (20, 1008256396), (28, 720183140), (35, 576146512), (40, 504128198), (56, 360091570), (70, 288073256), (80, 252064099), (112, 180045785), (140, 144036628), (280, 72018314), (560, 36009157), (1307, 15428560), (2614, 7714280), (5228, 3857140), (6535, 3085712), (9149, 2204080), (10456, 1928570), (13070, 1542856), (18298, 1102040), (20912, 964285), (26140, 771428), (27551, 731920), (36596, 551020), (45745, 440816), (52280, 385714), (55102, 365960), (73192, 275510), (91490, 220408), (104560, 192857), (110204, 182980), (137755, 146384)]