640358682

素因数分解:

$2^1\times 3^1\times {\mathrm{421}}^1\times {\mathrm{253507}}^1$

素因数の和:253933

約数の個数: 16

約数和(自身を含む): 1283764512

約数和(自身を除く): 643405830

約数列:

[1, 2, 3, 6, 421, 842, 1263, 2526, 253507, 507014, 760521, 1521042, 106726447, 213452894, 320179341, 640358682]

約数ペア:

[(1, 640358682), (2, 320179341), (3, 213452894), (6, 106726447), (421, 1521042), (842, 760521), (1263, 507014), (2526, 253507)]