51495340

素因数分解:

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

素因数の和:6442

約数の個数: 48

約数和(自身を含む): 120234240

約数和(自身を除く): 68738900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 6389, 8060, 12778, 25556, 31945, 63890, 83057, 127780, 166114, 198059, 332228, 396118, 415285, 792236, 830570, 990295, 1661140, 1980590, 2574767, 3961180, 5149534, 10299068, 12873835, 25747670, 51495340]

約数ペア:

[(1, 51495340), (2, 25747670), (4, 12873835), (5, 10299068), (10, 5149534), (13, 3961180), (20, 2574767), (26, 1980590), (31, 1661140), (52, 990295), (62, 830570), (65, 792236), (124, 415285), (130, 396118), (155, 332228), (260, 198059), (310, 166114), (403, 127780), (620, 83057), (806, 63890), (1612, 31945), (2015, 25556), (4030, 12778), (6389, 8060)]