81354544

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{57131}}^1$

素因数の和:57228

約数の個数: 20

約数和(自身を含む): 159398280

約数和(自身を除く): 78043736

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 57131, 114262, 228524, 457048, 914096, 5084659, 10169318, 20338636, 40677272, 81354544]

約数ペア:

[(1, 81354544), (2, 40677272), (4, 20338636), (8, 10169318), (16, 5084659), (89, 914096), (178, 457048), (356, 228524), (712, 114262), (1424, 57131)]