20145880139

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{79}}^1\times {\mathrm{673}}^1$

素因数の和:833

約数の個数: 96

約数和(自身を含む): 28029772800

約数和(自身を除く): 7883892661

約数列:

[1, 7, 11, 19, 37, 49, 77, 79, 133, 209, 259, 407, 539, 553, 673, 703, 869, 931, 1463, 1501, 1813, 2849, 2923, 3871, 4711, 4921, 6083, 7403, 7733, 10241, 10507, 12787, 16511, 19943, 20461, 24901, 32153, 32977, 34447, 42581, 51821, 53167, 54131, 55537, 73549, 89509, 115577, 140657, 143227, 174307, 225071, 273911, 362747, 372169, 378917, 388759, 473119, 584837, 610907, 626563, 809039, 984599, 1010173, 1220149, 1575497, 1917377, 1967179, 2605183, 2721313, 3311833, 4093859, 4276349, 5204309, 6892193, 7071211, 11111903, 13421639, 13770253, 21638969, 23182831, 28657013, 29934443, 36430163, 37376401, 49498477, 77783321, 96391771, 151472783, 255011141, 261634807, 411140411, 544483247, 1060309481, 1831443649, 2877982877, 20145880139]

約数ペア:

[(1, 20145880139), (7, 2877982877), (11, 1831443649), (19, 1060309481), (37, 544483247), (49, 411140411), (77, 261634807), (79, 255011141), (133, 151472783), (209, 96391771), (259, 77783321), (407, 49498477), (539, 37376401), (553, 36430163), (673, 29934443), (703, 28657013), (869, 23182831), (931, 21638969), (1463, 13770253), (1501, 13421639), (1813, 11111903), (2849, 7071211), (2923, 6892193), (3871, 5204309), (4711, 4276349), (4921, 4093859), (6083, 3311833), (7403, 2721313), (7733, 2605183), (10241, 1967179), (10507, 1917377), (12787, 1575497), (16511, 1220149), (19943, 1010173), (20461, 984599), (24901, 809039), (32153, 626563), (32977, 610907), (34447, 584837), (42581, 473119), (51821, 388759), (53167, 378917), (54131, 372169), (55537, 362747), (73549, 273911), (89509, 225071), (115577, 174307), (140657, 143227)]