81508456

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{211}}^1\times {\mathrm{443}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 155311200

約数和(自身を除く): 73802744

約数列:

[1, 2, 4, 8, 109, 211, 218, 422, 436, 443, 844, 872, 886, 1688, 1772, 3544, 22999, 45998, 48287, 91996, 93473, 96574, 183992, 186946, 193148, 373892, 386296, 747784, 10188557, 20377114, 40754228, 81508456]

約数ペア:

[(1, 81508456), (2, 40754228), (4, 20377114), (8, 10188557), (109, 747784), (211, 386296), (218, 373892), (422, 193148), (436, 186946), (443, 183992), (844, 96574), (872, 93473), (886, 91996), (1688, 48287), (1772, 45998), (3544, 22999)]