39881260

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7759}}^1$

素因数の和:8025

約数の個数: 24

約数和(自身を含む): 84087360

約数和(自身を除く): 44206100

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 7759, 15518, 31036, 38795, 77590, 155180, 1994063, 3988126, 7976252, 9970315, 19940630, 39881260]

約数ペア:

[(1, 39881260), (2, 19940630), (4, 9970315), (5, 7976252), (10, 3988126), (20, 1994063), (257, 155180), (514, 77590), (1028, 38795), (1285, 31036), (2570, 15518), (5140, 7759)]