257788362

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{46549}}^1$

素因数の和:46638

約数の個数: 32

約数和(自身を含む): 563068800

約数和(自身を除く): 305280438

約数列:

[1, 2, 3, 6, 13, 26, 39, 71, 78, 142, 213, 426, 923, 1846, 2769, 5538, 46549, 93098, 139647, 279294, 605137, 1210274, 1815411, 3304979, 3630822, 6609958, 9914937, 19829874, 42964727, 85929454, 128894181, 257788362]

約数ペア:

[(1, 257788362), (2, 128894181), (3, 85929454), (6, 42964727), (13, 19829874), (26, 9914937), (39, 6609958), (71, 3630822), (78, 3304979), (142, 1815411), (213, 1210274), (426, 605137), (923, 279294), (1846, 139647), (2769, 93098), (5538, 46549)]