85664892020

素因数分解:

$2^2\times 5^1\times {\mathrm{997}}^1\times {\mathrm{1013}}^1\times {\mathrm{4241}}^1$

素因数の和:6260

約数の個数: 48

約数和(自身を含む): 180296979408

約数和(自身を除く): 94632087388

約数列:

[1, 2, 4, 5, 10, 20, 997, 1013, 1994, 2026, 3988, 4052, 4241, 4985, 5065, 8482, 9970, 10130, 16964, 19940, 20260, 21205, 42410, 84820, 1009961, 2019922, 4039844, 4228277, 4296133, 5049805, 8456554, 8592266, 10099610, 16913108, 17184532, 20199220, 21141385, 21480665, 42282770, 42961330, 84565540, 85922660, 4283244601, 8566489202, 17132978404, 21416223005, 42832446010, 85664892020]

約数ペア:

[(1, 85664892020), (2, 42832446010), (4, 21416223005), (5, 17132978404), (10, 8566489202), (20, 4283244601), (997, 85922660), (1013, 84565540), (1994, 42961330), (2026, 42282770), (3988, 21480665), (4052, 21141385), (4241, 20199220), (4985, 17184532), (5065, 16913108), (8482, 10099610), (9970, 8592266), (10130, 8456554), (16964, 5049805), (19940, 4296133), (20260, 4228277), (21205, 4039844), (42410, 2019922), (84820, 1009961)]