18742480

素因数分解:

$2^4\times 5^1\times {\mathrm{234281}}^1$

素因数の和:234294

約数の個数: 20

約数和(自身を含む): 43576452

約数和(自身を除く): 24833972

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 234281, 468562, 937124, 1171405, 1874248, 2342810, 3748496, 4685620, 9371240, 18742480]

約数ペア:

[(1, 18742480), (2, 9371240), (4, 4685620), (5, 3748496), (8, 2342810), (10, 1874248), (16, 1171405), (20, 937124), (40, 468562), (80, 234281)]