18096980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1913}}^1$

素因数の和:1976

約数の個数: 48

約数和(自身を含む): 42444864

約数和(自身を除く): 24347884

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 43, 44, 55, 86, 110, 172, 215, 220, 430, 473, 860, 946, 1892, 1913, 2365, 3826, 4730, 7652, 9460, 9565, 19130, 21043, 38260, 42086, 82259, 84172, 105215, 164518, 210430, 329036, 411295, 420860, 822590, 904849, 1645180, 1809698, 3619396, 4524245, 9048490, 18096980]

約数ペア:

[(1, 18096980), (2, 9048490), (4, 4524245), (5, 3619396), (10, 1809698), (11, 1645180), (20, 904849), (22, 822590), (43, 420860), (44, 411295), (55, 329036), (86, 210430), (110, 164518), (172, 105215), (215, 84172), (220, 82259), (430, 42086), (473, 38260), (860, 21043), (946, 19130), (1892, 9565), (1913, 9460), (2365, 7652), (3826, 4730)]