81026840

素因数分解:

$2^3\times 5^1\times {\mathrm{2025671}}^1$

素因数の和:2025682

約数の個数: 16

約数和(自身を含む): 182310480

約数和(自身を除く): 101283640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2025671, 4051342, 8102684, 10128355, 16205368, 20256710, 40513420, 81026840]

約数ペア:

[(1, 81026840), (2, 40513420), (4, 20256710), (5, 16205368), (8, 10128355), (10, 8102684), (20, 4051342), (40, 2025671)]