51316840

素因数分解:

$2^3\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1259}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 115668000

約数和(自身を除く): 64351160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1019, 1259, 2038, 2518, 4076, 5036, 5095, 6295, 8152, 10072, 10190, 12590, 20380, 25180, 40760, 50360, 1282921, 2565842, 5131684, 6414605, 10263368, 12829210, 25658420, 51316840]

約数ペア:

[(1, 51316840), (2, 25658420), (4, 12829210), (5, 10263368), (8, 6414605), (10, 5131684), (20, 2565842), (40, 1282921), (1019, 50360), (1259, 40760), (2038, 25180), (2518, 20380), (4076, 12590), (5036, 10190), (5095, 10072), (6295, 8152)]