39884980

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{2459}}^1$

素因数の和:3279

約数の個数: 24

約数和(自身を含む): 83895840

約数和(自身を除く): 44010860

約数列:

[1, 2, 4, 5, 10, 20, 811, 1622, 2459, 3244, 4055, 4918, 8110, 9836, 12295, 16220, 24590, 49180, 1994249, 3988498, 7976996, 9971245, 19942490, 39884980]

約数ペア:

[(1, 39884980), (2, 19942490), (4, 9971245), (5, 7976996), (10, 3988498), (20, 1994249), (811, 49180), (1622, 24590), (2459, 16220), (3244, 12295), (4055, 9836), (4918, 8110)]