31640518

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{311}}^1$

素因数の和:389

約数の個数: 48

約数和(自身を含む): 60293376

約数和(自身を除く): 28652858

約数列:

[1, 2, 7, 13, 14, 26, 43, 86, 91, 169, 182, 301, 311, 338, 559, 602, 622, 1118, 1183, 2177, 2366, 3913, 4043, 4354, 7267, 7826, 8086, 13373, 14534, 26746, 28301, 50869, 52559, 56602, 93611, 101738, 105118, 173849, 187222, 347698, 367913, 735826, 1216943, 2260037, 2433886, 4520074, 15820259, 31640518]

約数ペア:

[(1, 31640518), (2, 15820259), (7, 4520074), (13, 2433886), (14, 2260037), (26, 1216943), (43, 735826), (86, 367913), (91, 347698), (169, 187222), (182, 173849), (301, 105118), (311, 101738), (338, 93611), (559, 56602), (602, 52559), (622, 50869), (1118, 28301), (1183, 26746), (2177, 14534), (2366, 13373), (3913, 8086), (4043, 7826), (4354, 7267)]