206566840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{120097}}^1$

素因数の和:120151

約数の個数: 32

約数和(自身を含む): 475588080

約数和(自身を除く): 269021240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 120097, 240194, 480388, 600485, 960776, 1200970, 2401940, 4803880, 5164171, 10328342, 20656684, 25820855, 41313368, 51641710, 103283420, 206566840]

約数ペア:

[(1, 206566840), (2, 103283420), (4, 51641710), (5, 41313368), (8, 25820855), (10, 20656684), (20, 10328342), (40, 5164171), (43, 4803880), (86, 2401940), (172, 1200970), (215, 960776), (344, 600485), (430, 480388), (860, 240194), (1720, 120097)]