15438990

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{1987}}^1$

素因数の和:2041

約数の個数: 64

約数和(自身を含む): 43513344

約数和(自身を除く): 28074354

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 1987, 2590, 3885, 3974, 5961, 7770, 9935, 11922, 13909, 19870, 27818, 29805, 41727, 59610, 69545, 73519, 83454, 139090, 147038, 208635, 220557, 367595, 417270, 441114, 514633, 735190, 1029266, 1102785, 1543899, 2205570, 2573165, 3087798, 5146330, 7719495, 15438990]

約数ペア:

[(1, 15438990), (2, 7719495), (3, 5146330), (5, 3087798), (6, 2573165), (7, 2205570), (10, 1543899), (14, 1102785), (15, 1029266), (21, 735190), (30, 514633), (35, 441114), (37, 417270), (42, 367595), (70, 220557), (74, 208635), (105, 147038), (111, 139090), (185, 83454), (210, 73519), (222, 69545), (259, 59610), (370, 41727), (518, 29805), (555, 27818), (777, 19870), (1110, 13909), (1295, 11922), (1554, 9935), (1987, 7770), (2590, 5961), (3885, 3974)]