18675890

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{4801}}^1$

素因数の和:5197

約数の個数: 16

約数和(自身を含む): 33710040

約数和(自身を除く): 15034150

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 4801, 9602, 24005, 48010, 1867589, 3735178, 9337945, 18675890]

約数ペア:

[(1, 18675890), (2, 9337945), (5, 3735178), (10, 1867589), (389, 48010), (778, 24005), (1945, 9602), (3890, 4801)]