127540231

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1559}}^1$

素因数の和:1639

約数の個数: 32

約数和(自身を含む): 167731200

約数和(自身を除く): 40190969

約数列:

[1, 7, 13, 29, 31, 91, 203, 217, 377, 403, 899, 1559, 2639, 2821, 6293, 10913, 11687, 20267, 45211, 48329, 81809, 141869, 316477, 338303, 587743, 628277, 1401541, 4114201, 4397939, 9810787, 18220033, 127540231]

約数ペア:

[(1, 127540231), (7, 18220033), (13, 9810787), (29, 4397939), (31, 4114201), (91, 1401541), (203, 628277), (217, 587743), (377, 338303), (403, 316477), (899, 141869), (1559, 81809), (2639, 48329), (2821, 45211), (6293, 20267), (10913, 11687)]