90389410

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{22541}}^1$

素因数の和:22949

約数の個数: 16

約数和(自身を含む): 163113912

約数和(自身を除く): 72724502

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 22541, 45082, 112705, 225410, 9038941, 18077882, 45194705, 90389410]

約数ペア:

[(1, 90389410), (2, 45194705), (5, 18077882), (10, 9038941), (401, 225410), (802, 112705), (2005, 45082), (4010, 22541)]