81520228

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{1033}}^1$

素因数の和:1327

約数の個数: 24

約数和(自身を含む): 144904760

約数和(自身を除く): 63384532

約数列:

[1, 2, 4, 109, 181, 218, 362, 436, 724, 1033, 2066, 4132, 19729, 39458, 78916, 112597, 186973, 225194, 373946, 450388, 747892, 20380057, 40760114, 81520228]

約数ペア:

[(1, 81520228), (2, 40760114), (4, 20380057), (109, 747892), (181, 450388), (218, 373946), (362, 225194), (436, 186973), (724, 112597), (1033, 78916), (2066, 39458), (4132, 19729)]