128161285

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:194

約数の個数: 64

約数和(自身を含む): 193019904

約数和(自身を除く): 64858619

約数列:

[1, 5, 7, 31, 35, 41, 43, 67, 155, 205, 215, 217, 287, 301, 335, 469, 1085, 1271, 1333, 1435, 1505, 1763, 2077, 2345, 2747, 2881, 6355, 6665, 8815, 8897, 9331, 10385, 12341, 13735, 14405, 14539, 19229, 20167, 44485, 46655, 54653, 61705, 72695, 85157, 89311, 96145, 100835, 118121, 273265, 382571, 425785, 446555, 590605, 596099, 625177, 826847, 1912855, 2980495, 3125885, 3661751, 4134235, 18308755, 25632257, 128161285]

約数ペア:

[(1, 128161285), (5, 25632257), (7, 18308755), (31, 4134235), (35, 3661751), (41, 3125885), (43, 2980495), (67, 1912855), (155, 826847), (205, 625177), (215, 596099), (217, 590605), (287, 446555), (301, 425785), (335, 382571), (469, 273265), (1085, 118121), (1271, 100835), (1333, 96145), (1435, 89311), (1505, 85157), (1763, 72695), (2077, 61705), (2345, 54653), (2747, 46655), (2881, 44485), (6355, 20167), (6665, 19229), (8815, 14539), (8897, 14405), (9331, 13735), (10385, 12341)]