25747670

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6389}}^1$

素因数の和:6440

約数の個数: 32

約数和(自身を含む): 51528960

約数和(自身を除く): 25781290

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 6389, 12778, 31945, 63890, 83057, 166114, 198059, 396118, 415285, 830570, 990295, 1980590, 2574767, 5149534, 12873835, 25747670]

約数ペア:

[(1, 25747670), (2, 12873835), (5, 5149534), (10, 2574767), (13, 1980590), (26, 990295), (31, 830570), (62, 415285), (65, 396118), (130, 198059), (155, 166114), (310, 83057), (403, 63890), (806, 31945), (2015, 12778), (4030, 6389)]