864206290

素因数分解:

$2^1\times 5^1\times {\mathrm{389}}^1\times {\mathrm{222161}}^1$

素因数の和:222557

約数の個数: 16

約数和(自身を含む): 1559577240

約数和(自身を除く): 695370950

約数列:

[1, 2, 5, 10, 389, 778, 1945, 3890, 222161, 444322, 1110805, 2221610, 86420629, 172841258, 432103145, 864206290]

約数ペア:

[(1, 864206290), (2, 432103145), (5, 172841258), (10, 86420629), (389, 2221610), (778, 1110805), (1945, 444322), (3890, 222161)]