7921000240

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{15377}}^1$

素因数の和:15574

約数の個数: 80

約数和(自身を含む): 18946680192

約数和(自身を除く): 11025679952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 137, 188, 235, 274, 376, 470, 548, 685, 752, 940, 1096, 1370, 1880, 2192, 2740, 3760, 5480, 6439, 10960, 12878, 15377, 25756, 30754, 32195, 51512, 61508, 64390, 76885, 103024, 123016, 128780, 153770, 246032, 257560, 307540, 515120, 615080, 722719, 1230160, 1445438, 2106649, 2890876, 3613595, 4213298, 5781752, 7227190, 8426596, 10533245, 11563504, 14454380, 16853192, 21066490, 28908760, 33706384, 42132980, 57817520, 84265960, 99012503, 168531920, 198025006, 396050012, 495062515, 792100024, 990125030, 1584200048, 1980250060, 3960500120, 7921000240]

約数ペア:

[(1, 7921000240), (2, 3960500120), (4, 1980250060), (5, 1584200048), (8, 990125030), (10, 792100024), (16, 495062515), (20, 396050012), (40, 198025006), (47, 168531920), (80, 99012503), (94, 84265960), (137, 57817520), (188, 42132980), (235, 33706384), (274, 28908760), (376, 21066490), (470, 16853192), (548, 14454380), (685, 11563504), (752, 10533245), (940, 8426596), (1096, 7227190), (1370, 5781752), (1880, 4213298), (2192, 3613595), (2740, 2890876), (3760, 2106649), (5480, 1445438), (6439, 1230160), (10960, 722719), (12878, 615080), (15377, 515120), (25756, 307540), (30754, 257560), (32195, 246032), (51512, 153770), (61508, 128780), (64390, 123016), (76885, 103024)]