257905400

素因数分解:

$2^3\times 5^2\times {\mathrm{43}}^1\times {\mathrm{29989}}^1$

素因数の和:30048

約数の個数: 48

約数和(自身を含む): 613595400

約数和(自身を除く): 355690000

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 43, 50, 86, 100, 172, 200, 215, 344, 430, 860, 1075, 1720, 2150, 4300, 8600, 29989, 59978, 119956, 149945, 239912, 299890, 599780, 749725, 1199560, 1289527, 1499450, 2579054, 2998900, 5158108, 5997800, 6447635, 10316216, 12895270, 25790540, 32238175, 51581080, 64476350, 128952700, 257905400]

約数ペア:

[(1, 257905400), (2, 128952700), (4, 64476350), (5, 51581080), (8, 32238175), (10, 25790540), (20, 12895270), (25, 10316216), (40, 6447635), (43, 5997800), (50, 5158108), (86, 2998900), (100, 2579054), (172, 1499450), (200, 1289527), (215, 1199560), (344, 749725), (430, 599780), (860, 299890), (1075, 239912), (1720, 149945), (2150, 119956), (4300, 59978), (8600, 29989)]