20810451780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{239}}^1\times {\mathrm{4987}}^1$

素因数の和:5338

約数の個数: 144

約数和(自身を含む): 64055496960

約数和(自身を除く): 43245045180

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 97, 180, 194, 239, 291, 388, 478, 485, 582, 717, 873, 956, 970, 1164, 1195, 1434, 1455, 1746, 1940, 2151, 2390, 2868, 2910, 3492, 3585, 4302, 4365, 4780, 4987, 5820, 7170, 8604, 8730, 9974, 10755, 14340, 14961, 17460, 19948, 21510, 23183, 24935, 29922, 43020, 44883, 46366, 49870, 59844, 69549, 74805, 89766, 92732, 99740, 115915, 139098, 149610, 179532, 208647, 224415, 231830, 278196, 299220, 347745, 417294, 448830, 463660, 483739, 695490, 834588, 897660, 967478, 1043235, 1191893, 1390980, 1451217, 1934956, 2086470, 2383786, 2418695, 2902434, 3575679, 4172940, 4353651, 4767572, 4837390, 5804868, 5959465, 7151358, 7256085, 8707302, 9674780, 10727037, 11918930, 14302716, 14512170, 17414604, 17878395, 21454074, 21768255, 23837860, 29024340, 35756790, 42908148, 43536510, 53635185, 71513580, 87073020, 107270370, 115613621, 214540740, 231227242, 346840863, 462454484, 578068105, 693681726, 1040522589, 1156136210, 1387363452, 1734204315, 2081045178, 2312272420, 3468408630, 4162090356, 5202612945, 6936817260, 10405225890, 20810451780]

約数ペア:

[(1, 20810451780), (2, 10405225890), (3, 6936817260), (4, 5202612945), (5, 4162090356), (6, 3468408630), (9, 2312272420), (10, 2081045178), (12, 1734204315), (15, 1387363452), (18, 1156136210), (20, 1040522589), (30, 693681726), (36, 578068105), (45, 462454484), (60, 346840863), (90, 231227242), (97, 214540740), (180, 115613621), (194, 107270370), (239, 87073020), (291, 71513580), (388, 53635185), (478, 43536510), (485, 42908148), (582, 35756790), (717, 29024340), (873, 23837860), (956, 21768255), (970, 21454074), (1164, 17878395), (1195, 17414604), (1434, 14512170), (1455, 14302716), (1746, 11918930), (1940, 10727037), (2151, 9674780), (2390, 8707302), (2868, 7256085), (2910, 7151358), (3492, 5959465), (3585, 5804868), (4302, 4837390), (4365, 4767572), (4780, 4353651), (4987, 4172940), (5820, 3575679), (7170, 2902434), (8604, 2418695), (8730, 2383786), (9974, 2086470), (10755, 1934956), (14340, 1451217), (14961, 1390980), (17460, 1191893), (19948, 1043235), (21510, 967478), (23183, 897660), (24935, 834588), (29922, 695490), (43020, 483739), (44883, 463660), (46366, 448830), (49870, 417294), (59844, 347745), (69549, 299220), (74805, 278196), (89766, 231830), (92732, 224415), (99740, 208647), (115915, 179532), (139098, 149610)]