843410840

素因数分解:

$2^3\times 5^1\times {\mathrm{21085271}}^1$

素因数の和:21085282

約数の個数: 16

約数和(自身を含む): 1897674480

約数和(自身を除く): 1054263640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21085271, 42170542, 84341084, 105426355, 168682168, 210852710, 421705420, 843410840]

約数ペア:

[(1, 843410840), (2, 421705420), (4, 210852710), (5, 168682168), (8, 105426355), (10, 84341084), (20, 42170542), (40, 21085271)]