39987344

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{28081}}^1$

素因数の和:28178

約数の個数: 20

約数和(自身を含む): 78348780

約数和(自身を除く): 38361436

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 28081, 56162, 112324, 224648, 449296, 2499209, 4998418, 9996836, 19993672, 39987344]

約数ペア:

[(1, 39987344), (2, 19993672), (4, 9996836), (8, 4998418), (16, 2499209), (89, 449296), (178, 224648), (356, 112324), (712, 56162), (1424, 28081)]