20880451515

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{83}}^1\times {\mathrm{19801}}^1$

素因数の和:19921

約数の個数: 96

約数和(自身を含む): 42475765248

約数和(自身を除く): 21595313733

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 77, 83, 105, 121, 165, 231, 249, 363, 385, 415, 581, 605, 847, 913, 1155, 1245, 1743, 1815, 2541, 2739, 2905, 4235, 4565, 6391, 8715, 10043, 12705, 13695, 19173, 19801, 30129, 31955, 50215, 59403, 70301, 95865, 99005, 138607, 150645, 210903, 217811, 297015, 351505, 415821, 653433, 693035, 1054515, 1089055, 1524677, 1643483, 2079105, 2395921, 3267165, 4574031, 4930449, 7187763, 7623385, 8217415, 11504381, 11979605, 16771447, 18078313, 22870155, 24652245, 34513143, 35938815, 50314341, 54234939, 57521905, 83857235, 90391565, 126548191, 172565715, 198861443, 251571705, 271174695, 379644573, 596584329, 632740955, 994307215, 1392030101, 1898222865, 2982921645, 4176090303, 6960150505, 20880451515]

約数ペア:

[(1, 20880451515), (3, 6960150505), (5, 4176090303), (7, 2982921645), (11, 1898222865), (15, 1392030101), (21, 994307215), (33, 632740955), (35, 596584329), (55, 379644573), (77, 271174695), (83, 251571705), (105, 198861443), (121, 172565715), (165, 126548191), (231, 90391565), (249, 83857235), (363, 57521905), (385, 54234939), (415, 50314341), (581, 35938815), (605, 34513143), (847, 24652245), (913, 22870155), (1155, 18078313), (1245, 16771447), (1743, 11979605), (1815, 11504381), (2541, 8217415), (2739, 7623385), (2905, 7187763), (4235, 4930449), (4565, 4574031), (6391, 3267165), (8715, 2395921), (10043, 2079105), (12705, 1643483), (13695, 1524677), (19173, 1089055), (19801, 1054515), (30129, 693035), (31955, 653433), (50215, 415821), (59403, 351505), (70301, 297015), (95865, 217811), (99005, 210903), (138607, 150645)]