31780912

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{18223}}^1$

素因数の和:18340

約数の個数: 20

約数和(自身を含む): 62143840

約数和(自身を除く): 30362928

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 18223, 36446, 72892, 145784, 291568, 1986307, 3972614, 7945228, 15890456, 31780912]

約数ペア:

[(1, 31780912), (2, 15890456), (4, 7945228), (8, 3972614), (16, 1986307), (109, 291568), (218, 145784), (436, 72892), (872, 36446), (1744, 18223)]