11500780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{311}}^1$

素因数の和:406

約数の個数: 36

約数和(自身を含む): 24805872

約数和(自身を除く): 13305092

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 311, 430, 622, 860, 1244, 1555, 1849, 3110, 3698, 6220, 7396, 9245, 13373, 18490, 26746, 36980, 53492, 66865, 133730, 267460, 575039, 1150078, 2300156, 2875195, 5750390, 11500780]

約数ペア:

[(1, 11500780), (2, 5750390), (4, 2875195), (5, 2300156), (10, 1150078), (20, 575039), (43, 267460), (86, 133730), (172, 66865), (215, 53492), (311, 36980), (430, 26746), (622, 18490), (860, 13373), (1244, 9245), (1555, 7396), (1849, 6220), (3110, 3698)]