87491984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{61441}}^1$

素因数の和:61538

約数の個数: 20

約数和(自身を含む): 171423180

約数和(自身を除く): 83931196

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 61441, 122882, 245764, 491528, 983056, 5468249, 10936498, 21872996, 43745992, 87491984]

約数ペア:

[(1, 87491984), (2, 43745992), (4, 21872996), (8, 10936498), (16, 5468249), (89, 983056), (178, 491528), (356, 245764), (712, 122882), (1424, 61441)]