20400028

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{541}}^1\times {\mathrm{857}}^1$

素因数の和:1413

約数の個数: 24

約数和(自身を含む): 39063024

約数和(自身を除く): 18662996

約数列:

[1, 2, 4, 11, 22, 44, 541, 857, 1082, 1714, 2164, 3428, 5951, 9427, 11902, 18854, 23804, 37708, 463637, 927274, 1854548, 5100007, 10200014, 20400028]

約数ペア:

[(1, 20400028), (2, 10200014), (4, 5100007), (11, 1854548), (22, 927274), (44, 463637), (541, 37708), (857, 23804), (1082, 18854), (1714, 11902), (2164, 9427), (3428, 5951)]