1640308325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{811}}^1\times {\mathrm{4759}}^1$

素因数の和:5597

約数の個数: 24

約数和(自身を含む): 2156736960

約数和(自身を除く): 516428635

約数列:

[1, 5, 17, 25, 85, 425, 811, 4055, 4759, 13787, 20275, 23795, 68935, 80903, 118975, 344675, 404515, 2022575, 3859549, 19297745, 65612333, 96488725, 328061665, 1640308325]

約数ペア:

[(1, 1640308325), (5, 328061665), (17, 96488725), (25, 65612333), (85, 19297745), (425, 3859549), (811, 2022575), (4055, 404515), (4759, 344675), (13787, 118975), (20275, 80903), (23795, 68935)]