165409840

素因数分解:

$2^4\times 5^1\times {\mathrm{2067623}}^1$

素因数の和:2067636

約数の個数: 20

約数和(自身を含む): 384578064

約数和(自身を除く): 219168224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2067623, 4135246, 8270492, 10338115, 16540984, 20676230, 33081968, 41352460, 82704920, 165409840]

約数ペア:

[(1, 165409840), (2, 82704920), (4, 41352460), (5, 33081968), (8, 20676230), (10, 16540984), (16, 10338115), (20, 8270492), (40, 4135246), (80, 2067623)]