259867810

素因数分解:

$2^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{571}}^1\times {\mathrm{641}}^1$

素因数の和:1290

約数の個数: 32

約数和(自身を含む): 475922304

約数和(自身を除く): 216054494

約数列:

[1, 2, 5, 10, 71, 142, 355, 571, 641, 710, 1142, 1282, 2855, 3205, 5710, 6410, 40541, 45511, 81082, 91022, 202705, 227555, 366011, 405410, 455110, 732022, 1830055, 3660110, 25986781, 51973562, 129933905, 259867810]

約数ペア:

[(1, 259867810), (2, 129933905), (5, 51973562), (10, 25986781), (71, 3660110), (142, 1830055), (355, 732022), (571, 455110), (641, 405410), (710, 366011), (1142, 227555), (1282, 202705), (2855, 91022), (3205, 81082), (5710, 45511), (6410, 40541)]