1247996840

素因数分解:

$2^3\times 5^1\times {\mathrm{2339}}^1\times {\mathrm{13339}}^1$

素因数の和:15689

約数の個数: 32

約数和(自身を含む): 2809404000

約数和(自身を除く): 1561407160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2339, 4678, 9356, 11695, 13339, 18712, 23390, 26678, 46780, 53356, 66695, 93560, 106712, 133390, 266780, 533560, 31199921, 62399842, 124799684, 155999605, 249599368, 311999210, 623998420, 1247996840]

約数ペア:

[(1, 1247996840), (2, 623998420), (4, 311999210), (5, 249599368), (8, 155999605), (10, 124799684), (20, 62399842), (40, 31199921), (2339, 533560), (4678, 266780), (9356, 133390), (11695, 106712), (13339, 93560), (18712, 66695), (23390, 53356), (26678, 46780)]