66886520

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{3659}}^1$

素因数の和:4127

約数の個数: 32

約数和(自身を含む): 150865200

約数和(自身を除く): 83978680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1828, 2285, 3656, 3659, 4570, 7318, 9140, 14636, 18280, 18295, 29272, 36590, 73180, 146360, 1672163, 3344326, 6688652, 8360815, 13377304, 16721630, 33443260, 66886520]

約数ペア:

[(1, 66886520), (2, 33443260), (4, 16721630), (5, 13377304), (8, 8360815), (10, 6688652), (20, 3344326), (40, 1672163), (457, 146360), (914, 73180), (1828, 36590), (2285, 29272), (3656, 18295), (3659, 18280), (4570, 14636), (7318, 9140)]