20120203675

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{12479}}^1$

素因数の和:12565

約数の個数: 72

約数和(自身を含む): 30255563520

約数和(自身を除く): 10135359845

約数列:

[1, 5, 11, 13, 25, 41, 55, 65, 121, 143, 205, 275, 325, 451, 533, 605, 715, 1025, 1573, 2255, 2665, 3025, 3575, 4961, 5863, 7865, 11275, 12479, 13325, 24805, 29315, 39325, 62395, 64493, 124025, 137269, 146575, 162227, 311975, 322465, 511639, 686345, 811135, 1509959, 1612325, 1784497, 2558195, 3431725, 4055675, 5628029, 6651307, 7549795, 8922485, 12790975, 19629467, 28140145, 33256535, 37748975, 44612425, 61908319, 73164377, 98147335, 140700725, 166282675, 309541595, 365821885, 490736675, 804808147, 1547707975, 1829109425, 4024040735, 20120203675]

約数ペア:

[(1, 20120203675), (5, 4024040735), (11, 1829109425), (13, 1547707975), (25, 804808147), (41, 490736675), (55, 365821885), (65, 309541595), (121, 166282675), (143, 140700725), (205, 98147335), (275, 73164377), (325, 61908319), (451, 44612425), (533, 37748975), (605, 33256535), (715, 28140145), (1025, 19629467), (1573, 12790975), (2255, 8922485), (2665, 7549795), (3025, 6651307), (3575, 5628029), (4961, 4055675), (5863, 3431725), (7865, 2558195), (11275, 1784497), (12479, 1612325), (13325, 1509959), (24805, 811135), (29315, 686345), (39325, 511639), (62395, 322465), (64493, 311975), (124025, 162227), (137269, 146575)]