66372440

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{40471}}^1$

素因数の和:40523

約数の個数: 32

約数和(自身を含む): 152984160

約数和(自身を除く): 86611720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 40471, 80942, 161884, 202355, 323768, 404710, 809420, 1618840, 1659311, 3318622, 6637244, 8296555, 13274488, 16593110, 33186220, 66372440]

約数ペア:

[(1, 66372440), (2, 33186220), (4, 16593110), (5, 13274488), (8, 8296555), (10, 6637244), (20, 3318622), (40, 1659311), (41, 1618840), (82, 809420), (164, 404710), (205, 323768), (328, 202355), (410, 161884), (820, 80942), (1640, 40471)]