19973434900

素因数分解:

$2^2\times 5^2\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:578

約数の個数: 144

約数和(自身を含む): 45150610176

約数和(自身を除く): 25177175276

約数列:

[1, 2, 4, 5, 10, 20, 25, 47, 50, 94, 97, 100, 188, 193, 194, 227, 235, 386, 388, 454, 470, 485, 772, 908, 940, 965, 970, 1135, 1175, 1930, 1940, 2270, 2350, 2425, 3860, 4540, 4559, 4700, 4825, 4850, 5675, 9071, 9118, 9650, 9700, 10669, 11350, 18142, 18236, 18721, 19300, 21338, 22019, 22700, 22795, 36284, 37442, 42676, 43811, 44038, 45355, 45590, 53345, 74884, 87622, 88076, 90710, 91180, 93605, 106690, 110095, 113975, 175244, 181420, 187210, 213380, 219055, 220190, 226775, 227950, 266725, 374420, 438110, 440380, 453550, 455900, 468025, 533450, 550475, 876220, 879887, 907100, 936050, 1034893, 1066900, 1095275, 1100950, 1759774, 1872100, 2059117, 2069786, 2190550, 2201900, 3519548, 4118234, 4139572, 4249667, 4381100, 4399435, 5174465, 8236468, 8499334, 8798870, 10295585, 10348930, 16998668, 17597740, 20591170, 20697860, 21248335, 21997175, 25872325, 41182340, 42496670, 43994350, 51477925, 51744650, 84993340, 87988700, 102955850, 103489300, 106241675, 199734349, 205911700, 212483350, 399468698, 424966700, 798937396, 998671745, 1997343490, 3994686980, 4993358725, 9986717450, 19973434900]

約数ペア:

[(1, 19973434900), (2, 9986717450), (4, 4993358725), (5, 3994686980), (10, 1997343490), (20, 998671745), (25, 798937396), (47, 424966700), (50, 399468698), (94, 212483350), (97, 205911700), (100, 199734349), (188, 106241675), (193, 103489300), (194, 102955850), (227, 87988700), (235, 84993340), (386, 51744650), (388, 51477925), (454, 43994350), (470, 42496670), (485, 41182340), (772, 25872325), (908, 21997175), (940, 21248335), (965, 20697860), (970, 20591170), (1135, 17597740), (1175, 16998668), (1930, 10348930), (1940, 10295585), (2270, 8798870), (2350, 8499334), (2425, 8236468), (3860, 5174465), (4540, 4399435), (4559, 4381100), (4700, 4249667), (4825, 4139572), (4850, 4118234), (5675, 3519548), (9071, 2201900), (9118, 2190550), (9650, 2069786), (9700, 2059117), (10669, 1872100), (11350, 1759774), (18142, 1100950), (18236, 1095275), (18721, 1066900), (19300, 1034893), (21338, 936050), (22019, 907100), (22700, 879887), (22795, 876220), (36284, 550475), (37442, 533450), (42676, 468025), (43811, 455900), (44038, 453550), (45355, 440380), (45590, 438110), (53345, 374420), (74884, 266725), (87622, 227950), (88076, 226775), (90710, 220190), (91180, 219055), (93605, 213380), (106690, 187210), (110095, 181420), (113975, 175244)]