389919985

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{2203}}^1$

素因数の和:2617

約数の個数: 32

約数和(自身を含む): 577624320

約数和(自身を除く): 187704335

約数列:

[1, 5, 7, 13, 35, 65, 91, 389, 455, 1945, 2203, 2723, 5057, 11015, 13615, 15421, 25285, 28639, 35399, 77105, 143195, 176995, 200473, 856967, 1002365, 4284835, 5998769, 11140571, 29993845, 55702855, 77983997, 389919985]

約数ペア:

[(1, 389919985), (5, 77983997), (7, 55702855), (13, 29993845), (35, 11140571), (65, 5998769), (91, 4284835), (389, 1002365), (455, 856967), (1945, 200473), (2203, 176995), (2723, 143195), (5057, 77105), (11015, 35399), (13615, 28639), (15421, 25285)]