81401940

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{452233}}^1$

素因数の和:452248

約数の個数: 36

約数和(自身を含む): 246919764

約数和(自身を除く): 165517824

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 452233, 904466, 1356699, 1808932, 2261165, 2713398, 4070097, 4522330, 5426796, 6783495, 8140194, 9044660, 13566990, 16280388, 20350485, 27133980, 40700970, 81401940]

約数ペア:

[(1, 81401940), (2, 40700970), (3, 27133980), (4, 20350485), (5, 16280388), (6, 13566990), (9, 9044660), (10, 8140194), (12, 6783495), (15, 5426796), (18, 4522330), (20, 4070097), (30, 2713398), (36, 2261165), (45, 1808932), (60, 1356699), (90, 904466), (180, 452233)]